

<!-- RR Donnelley Xcelerate Taxonomy Labels Linkbase, based on XBRL 2.1  http://www.edgar-online.com/ -->
<!-- Version: 6.20.1 -->
<!-- Round: 5 -->
<!-- Creation date: 2013-03-29T06:18:30Z -->
<!-- Copyright (c) 2005-2013 R.R. Donnelley & Sons Company All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <roleRef xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2008-03-31.xsd#negated" roleURI="http://xbrl.us/us-gaap/role/label/negated"/>
  <labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountingGuidanceMember" xlink:label="us-gaap_AccountingGuidanceMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingGuidanceMember_lbl" xml:lang="en-US" id="id_1168147_498084_1_1">Accounting Guidance [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountingGuidanceMember_lbl" xml:lang="en-US" id="id_1168147_498084_2_1">Accounting Guidance [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingGuidanceMember" xlink:to="us-gaap_AccountingGuidanceMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_512424_1_1">Accounts Payable And Accrued Liabilities Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_512424_2_1">Accrued Expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xml:lang="en-US" id="id_1168147_506122_1_1">Accounts Payable Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xml:lang="en-US" id="id_1168147_506122_2_1">Accounts payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AccretionOfRedeemableConvertiblePreferredStock" xlink:label="galt_AccretionOfRedeemableConvertiblePreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AccretionOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519476_3_1">Accretion on redeemable convertible preferred stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AccretionOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519476_1_1">Accretion Of Redeemable Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="galt_AccretionOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519476_8_1">Accretion of redeemable convertible preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AccretionOfRedeemableConvertiblePreferredStock" xlink:to="galt_AccretionOfRedeemableConvertiblePreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_511240_1_1">Accrued Liabilities Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_511240_2_1">Accrued expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_511240_6_1">Total</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccruedLiabilitiesMember" xlink:label="us-gaap_AccruedLiabilitiesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedLiabilitiesMember_lbl" xml:lang="en-US" id="id_1168147_504935_1_1">Accrued Liabilities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedLiabilitiesMember_lbl" xml:lang="en-US" id="id_1168147_504935_2_1">Accrued Liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesMember" xlink:to="us-gaap_AccruedLiabilitiesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="us-gaap_AccruedProfessionalFeesCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedProfessionalFeesCurrent_lbl" xml:lang="en-US" id="id_1168147_504644_1_1">Accrued Professional Fees Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedProfessionalFeesCurrent_lbl" xml:lang="en-US" id="id_1168147_504644_2_1">Legal and accounting fees</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedProfessionalFeesCurrent" xlink:to="us-gaap_AccruedProfessionalFeesCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AccruedSeparationAgreement" xlink:label="galt_AccruedSeparationAgreement"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AccruedSeparationAgreement_lbl" xml:lang="en-US" id="id_1168147_691543_3_1">Accrued Separation Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AccruedSeparationAgreement_lbl" xml:lang="en-US" id="id_1168147_691543_1_1">Accrued Separation Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AccruedSeparationAgreement_lbl" xml:lang="en-US" id="id_1168147_691543_2_1">Severance agreement (Note 11)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AccruedSeparationAgreement" xlink:to="galt_AccruedSeparationAgreement_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xlink:label="us-gaap_AccumulatedDeficitDuringDevelopmentStageMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDeficitDuringDevelopmentStageMember_lbl" xml:lang="en-US" id="id_1168147_500343_1_1">Accumulated Deficit During Development Stage [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccumulatedDeficitDuringDevelopmentStageMember_lbl" xml:lang="en-US" id="id_1168147_500343_2_1">Deficit Accumulated During the Development Stage</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDeficitDuringDevelopmentStageMember" xlink:to="us-gaap_AccumulatedDeficitDuringDevelopmentStageMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_1168147_513924_1_1">Accumulated Depreciation Depletion And Amortization Property Plant And Equipment</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_1168147_513924_8_1">Less accumulated depreciation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xml:lang="en-US" id="id_1168147_514143_1_1">Additional Paid In Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalPaidInCapital_lbl" xml:lang="en-US" id="id_1168147_514143_2_1">Additional paid-in capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapital" xlink:to="us-gaap_AdditionalPaidInCapital_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xml:lang="en-US" id="id_1168147_508619_1_1">Additional Paid In Capital [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xml:lang="en-US" id="id_1168147_508619_2_1">Additional Paid-In Capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions" xlink:label="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions_lbl" xml:lang="en-US" id="id_1168147_603548_3_1">Additional Share Based Compensation Expense Related to Modified Stock Options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions_lbl" xml:lang="en-US" id="id_1168147_603548_1_1">Additional Share Based Compensation Expense Related To Modified Stock Options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions_lbl" xml:lang="en-US" id="id_1168147_603548_2_1">Additional stock-based compensation expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions" xlink:to="galt_AdditionalShareBasedCompensationExpenseRelatedToModifiedStockOptions_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation" xlink:label="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation_lbl" xml:lang="en-US" id="id_1168147_526613_3_1">Adjustments To Additional Paid In Capital Deferred Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation_lbl" xml:lang="en-US" id="id_1168147_526613_1_1">Adjustments To Additional Paid In Capital Deferred Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation_lbl" xml:lang="en-US" id="id_1168147_526613_2_1">Deferred compensation relating to issuance of stock options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation" xlink:to="galt_AdjustmentsToAdditionalPaidInCapitalDeferredCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xml:lang="en-US" id="id_1168147_500272_1_1">Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xml:lang="en-US" id="id_1168147_500272_2_1">Stock-based compensation expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xml:lang="en-US" id="id_1168147_499660_1_1">Adjustments To Additional Paid In Capital Warrant Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xml:lang="en-US" id="id_1168147_499660_2_1">Issuance of Common Stock Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xml:lang="en-US" id="id_1168147_499660_12_1">Warrant liability credited to additional paid in capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_502541_1_1">Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_502541_2_1">Adjustments to reconcile net loss to net cash used in operating activities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AdoptionOfNewAccountingPronouncementEffectMember" xlink:label="galt_AdoptionOfNewAccountingPronouncementEffectMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AdoptionOfNewAccountingPronouncementEffectMember_lbl" xml:lang="en-US" id="id_1168147_536060_3_1">Adoption of New Accounting Pronouncement Effect [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AdoptionOfNewAccountingPronouncementEffectMember_lbl" xml:lang="en-US" id="id_1168147_536060_1_1">Adoption Of New Accounting Pronouncement Effect [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AdoptionOfNewAccountingPronouncementEffectMember_lbl" xml:lang="en-US" id="id_1168147_536060_2_1">Adoption of New Accounting Pronouncement Effect</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AdoptionOfNewAccountingPronouncementEffectMember" xlink:to="galt_AdoptionOfNewAccountingPronouncementEffectMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AdvisorMember" xlink:label="galt_AdvisorMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AdvisorMember_lbl" xml:lang="en-US" id="id_1168147_604034_3_1">Advisor [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AdvisorMember_lbl" xml:lang="en-US" id="id_1168147_604034_1_1">Advisor [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AdvisorMember_lbl" xml:lang="en-US" id="id_1168147_604034_2_1">Advisor</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_AdvisorMember" xlink:to="galt_AdvisorMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AgreementWithPartiesAxis" xlink:label="galt_AgreementWithPartiesAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AgreementWithPartiesAxis_lbl" xml:lang="en-US" id="id_1168147_575189_3_1">Agreement With Parties [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AgreementWithPartiesAxis_lbl" xml:lang="en-US" id="id_1168147_575189_1_1">Agreement With Parties [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AgreementWithPartiesAxis_lbl" xml:lang="en-US" id="id_1168147_575189_2_1">Agreement With Parties [Axis]</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AgreementWithPartiesDomain" xlink:label="galt_AgreementWithPartiesDomain"/>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xml:lang="en-US" id="id_1168147_514791_1_1">Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xml:lang="en-US" id="id_1168147_514791_2_1">Antidilutive Securities [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xml:lang="en-US" id="id_1168147_500817_1_1">Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xml:lang="en-US" id="id_1168147_500817_2_1">Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xml:lang="en-US" id="id_1168147_504656_1_1">Antidilutive Securities Name [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xml:lang="en-US" id="id_1168147_504656_2_1">Antidilutive Securities, Name [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="us-gaap_AntidilutiveSecuritiesNameDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AprilFifteenTwentyZeroNineConsultantWarrantsMember" xlink:label="galt_AprilFifteenTwentyZeroNineConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AprilFifteenTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624800_3_1">April Fifteen Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AprilFifteenTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624800_1_1">April Fifteen Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AprilFifteenTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624800_2_1">April 15, 2009 Consultant Warrants</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AprilThirtyTwentyTenSeriesBTwoTransactionMember" xlink:label="galt_AprilThirtyTwentyTenSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AprilThirtyTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624810_3_1">April Thirty Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AprilThirtyTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624810_1_1">April Thirty Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AprilThirtyTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624810_2_1">April 30, 2010 Series B-2 Transaction</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US" id="id_1168147_507639_1_1">Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US" id="id_1168147_507639_6_1">Total assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="us-gaap_AssetsAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US" id="id_1168147_498468_1_1">Assets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US" id="id_1168147_498468_2_1">ASSETS</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_lbl" xml:lang="en-US" id="id_1168147_513098_1_1">Assets Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsCurrent_lbl" xml:lang="en-US" id="id_1168147_513098_6_1">Total current assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US" id="id_1168147_513511_1_1">Assets Current [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US" id="id_1168147_513511_2_1">Current assets:</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="us-gaap_AssetsFairValueDisclosure"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_508331_1_1">Assets Fair Value Disclosure</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_508331_2_1">Money market funds</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsFairValueDisclosure" xlink:to="us-gaap_AssetsFairValueDisclosure_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_AugustTwelveTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_AugustTwelveTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_AugustTwelveTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624804_3_1">August Twelve Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_AugustTwelveTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624804_1_1">August Twelve Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_AugustTwelveTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624804_2_1">August 12, 2009 Series B-2 Transaction</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AwardTypeAxis_lbl" xml:lang="en-US" id="id_1168147_508454_1_1">Award Type [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AwardTypeAxis_lbl" xml:lang="en-US" id="id_1168147_508454_2_1">Award Type [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BankDeposit" xlink:label="galt_BankDeposit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BankDeposit_lbl" xml:lang="en-US" id="id_1168147_661765_3_1">Bank Deposit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BankDeposit_lbl" xml:lang="en-US" id="id_1168147_661765_1_1">Bank Deposit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BankDeposit_lbl" xml:lang="en-US" id="id_1168147_661765_2_1">Bank deposit</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BasisOfAccounting_lbl" xml:lang="en-US" id="id_1168147_503058_1_1">Basis Of Accounting</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_BasisOfAccounting_lbl" xml:lang="en-US" id="id_1168147_503058_2_1">Nature of Business and Basis of Presentation</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BasisOfPresentationLineItems" xlink:label="galt_BasisOfPresentationLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BasisOfPresentationLineItems_lbl" xml:lang="en-US" id="id_1168147_518839_3_1">Basis of Presentation [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BasisOfPresentationLineItems_lbl" xml:lang="en-US" id="id_1168147_518839_1_1">Basis Of Presentation [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BasisOfPresentationLineItems_lbl" xml:lang="en-US" id="id_1168147_518839_2_1">Basis of Presentation [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_BasisOfPresentationLineItems" xlink:to="galt_BasisOfPresentationLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BasisOfPresentationTable" xlink:label="galt_BasisOfPresentationTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BasisOfPresentationTable_lbl" xml:lang="en-US" id="id_1168147_541654_3_1">Basis of Presentation [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BasisOfPresentationTable_lbl" xml:lang="en-US" id="id_1168147_541654_1_1">Basis Of Presentation [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BasisOfPresentationTable_lbl" xml:lang="en-US" id="id_1168147_541654_2_1">Basis of Presentation [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_BasisOfPresentationTable" xlink:to="galt_BasisOfPresentationTable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BeneficialConversionFeatureMember" xlink:label="galt_BeneficialConversionFeatureMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BeneficialConversionFeatureMember_lbl" xml:lang="en-US" id="id_1168147_531897_3_1">Beneficial Conversion Feature [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BeneficialConversionFeatureMember_lbl" xml:lang="en-US" id="id_1168147_531897_1_1">Beneficial Conversion Feature [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BeneficialConversionFeatureMember_lbl" xml:lang="en-US" id="id_1168147_531897_2_1">Beneficial Conversion Feature</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_BeneficialConversionFeatureMember" xlink:to="galt_BeneficialConversionFeatureMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember" xlink:label="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610122_3_1">Board Member and Member of Scientific Advisory Board [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610122_1_1">Board Member And Member Of Scientific Advisory Board [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610122_2_1">Board Member and Member of Scientific Advisory Board</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember" xlink:to="galt_BoardMemberAndMemberOfScientificAdvisoryBoardMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_BoardOfDirectorsMember" xlink:label="galt_BoardOfDirectorsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_BoardOfDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_537581_3_1">Board of Directors [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_BoardOfDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_537581_1_1">Board Of Directors [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_BoardOfDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_537581_2_1">Board of Directors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_BoardOfDirectorsMember" xlink:to="galt_BoardOfDirectorsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US" id="id_1168147_510062_1_1">Cash And Cash Equivalents At Carrying Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US" id="id_1168147_510062_4_1">CASH AND CASH EQUIVALENTS, END OF PERIOD</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US" id="id_1168147_510062_5_1">CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US" id="id_1168147_510062_2_1">Cash and cash equivalents</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xml:lang="en-US" id="id_1168147_510062_12_1">Unrestricted cash and cash equivalents</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xml:lang="en-US" id="id_1168147_505888_1_1">Cash And Cash Equivalents Period Increase Decrease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xml:lang="en-US" id="id_1168147_505888_6_1">NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_500930_1_1">Cash And Cash Equivalents Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_500930_2_1">Cash and Cash Equivalents</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:to="us-gaap_CashAndCashEquivalentsPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xml:lang="en-US" id="id_1168147_510558_1_1">Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xml:lang="en-US" id="id_1168147_510558_2_1">Restricted Cash and Security Deposit</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:to="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xml:lang="en-US" id="id_1168147_504485_1_1">Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xml:lang="en-US" id="id_1168147_504485_2_1">NONCASH FINANCING ACTIVITIES:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CashlessExerciseOfStockOptionsAndWarrants" xlink:label="galt_CashlessExerciseOfStockOptionsAndWarrants"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CashlessExerciseOfStockOptionsAndWarrants_lbl" xml:lang="en-US" id="id_1168147_603322_3_1">Cashless Exercise of Stock Options and Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CashlessExerciseOfStockOptionsAndWarrants_lbl" xml:lang="en-US" id="id_1168147_603322_1_1">Cashless Exercise Of Stock Options And Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CashlessExerciseOfStockOptionsAndWarrants_lbl" xml:lang="en-US" id="id_1168147_603322_2_1">Cashless exercise of stock options and warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CashlessExerciseOfStockOptionsAndWarrants" xlink:to="galt_CashlessExerciseOfStockOptionsAndWarrants_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CashMember" xlink:label="us-gaap_CashMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashMember_lbl" xml:lang="en-US" id="id_1168147_501039_1_1">Cash [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashMember_lbl" xml:lang="en-US" id="id_1168147_501039_2_1">Cash</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashMember" xlink:to="us-gaap_CashMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ChangeInFairValueOfWarrant" xlink:label="galt_ChangeInFairValueOfWarrant"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ChangeInFairValueOfWarrant_lbl" xml:lang="en-US" id="id_1168147_520079_3_1">Change in fair value of warrant</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ChangeInFairValueOfWarrant_lbl" xml:lang="en-US" id="id_1168147_520079_1_1">Change In Fair Value Of Warrant</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ChangeInFairValueOfWarrant_lbl" xml:lang="en-US" id="id_1168147_520079_2_1">Change in fair value of warrant liabilities</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="galt_ChangeInFairValueOfWarrant_lbl" xml:lang="en-US" id="id_1168147_520079_8_1">Change in fair value of warrant liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ChangeInFairValueOfWarrant" xlink:to="galt_ChangeInFairValueOfWarrant_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ChangeInFairValueOfWarrantLiabilities" xlink:label="galt_ChangeInFairValueOfWarrantLiabilities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ChangeInFairValueOfWarrantLiabilities_lbl" xml:lang="en-US" id="id_1168147_526152_3_1">Change in Fair Value of Warrant Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ChangeInFairValueOfWarrantLiabilities_lbl" xml:lang="en-US" id="id_1168147_526152_1_1">Change In Fair Value Of Warrant Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ChangeInFairValueOfWarrantLiabilities_lbl" xml:lang="en-US" id="id_1168147_526152_2_1">Change in fair value of warrant liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ChangeInFairValueOfWarrantLiabilities" xlink:to="galt_ChangeInFairValueOfWarrantLiabilities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassAOneWarrantsMember" xlink:label="galt_ClassAOneWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassAOneWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624345_3_1">Class A One Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassAOneWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624345_1_1">Class A One Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassAOneWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624345_2_1">Class A One Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassAOneWarrantsMember" xlink:to="galt_ClassAOneWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassATwoWarrantsMember" xlink:label="galt_ClassATwoWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassATwoWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624346_3_1">Class A Two Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassATwoWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624346_1_1">Class A Two Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassATwoWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624346_2_1">Class A Two Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassATwoWarrantsMember" xlink:to="galt_ClassATwoWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassBWarrantsMember" xlink:label="galt_ClassBWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_531223_3_1">Class B Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_531223_1_1">Class B Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_531223_2_1">Class B Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassBWarrantsMember" xlink:to="galt_ClassBWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="us-gaap_ClassOfStockDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfStockDomain_lbl" xml:lang="en-US" id="id_1168147_508615_1_1">Class Of Stock [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfStockDomain_lbl" xml:lang="en-US" id="id_1168147_508615_2_1">Class of Stock [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_ClassOfStockDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="us-gaap_ClassOfStockLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xml:lang="en-US" id="id_1168147_507793_1_1">Class Of Stock [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xml:lang="en-US" id="id_1168147_507793_2_1">Class of Stock [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockLineItems" xlink:to="us-gaap_ClassOfStockLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable" xlink:label="us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable_lbl" xml:lang="en-US" id="id_1168147_499979_1_1">Class Of Warrant Or Righst Date From Which Warrants Or Rights Exercisable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable_lbl" xml:lang="en-US" id="id_1168147_499979_2_1">Exercisable Date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable" xlink:to="us-gaap_ClassOfWarrantOrRighstDateFromWhichWarrantsOrRightsExercisable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightAxis" xlink:label="us-gaap_ClassOfWarrantOrRightAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xml:lang="en-US" id="id_1168147_509379_1_1">Class Of Warrant Or Right [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xml:lang="en-US" id="id_1168147_509379_2_1">Class of Warrant or Right [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightDomain" xlink:label="us-gaap_ClassOfWarrantOrRightDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xml:lang="en-US" id="id_1168147_506760_1_1">Class Of Warrant Or Right [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xml:lang="en-US" id="id_1168147_506760_2_1">Class of Warrant or Right [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="us-gaap_ClassOfWarrantOrRightDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightExercisePeriod" xlink:label="galt_ClassOfWarrantOrRightExercisePeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_543963_3_1">Class of Warrant or Right, Exercise Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_543963_1_1">Class Of Warrant Or Right Exercise Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_543963_2_1">Warrants exercise period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightExercisePeriod" xlink:to="galt_ClassOfWarrantOrRightExercisePeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_513649_1_1">Class Of Warrant Or Right Exercise Price Of Warrants Or Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_513649_2_1">Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_513649_12_1">Exercise price of warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights" xlink:label="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_588233_3_1">Class of Warrant or Right, Intrinsic Value of Warrants or Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_588233_1_1">Class Of Warrant Or Right Intrinsic Value Of Warrants Or Rights</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_588233_8_1">Intrinsic value of liability warrants exercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights" xlink:to="galt_ClassOfWarrantOrRightIntrinsicValueOfWarrantsOrRights_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightIssuable" xlink:label="galt_ClassOfWarrantOrRightIssuable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightIssuable_lbl" xml:lang="en-US" id="id_1168147_624356_3_1">Class Of Warrant Or Right Issuable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightIssuable_lbl" xml:lang="en-US" id="id_1168147_624356_1_1">Class Of Warrant Or Right Issuable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightIssuable_lbl" xml:lang="en-US" id="id_1168147_624356_2_1">Warrants issuable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightIssuable" xlink:to="galt_ClassOfWarrantOrRightIssuable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock" xlink:label="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_528641_3_1">Class Of Warrant Or Right Issuable With Each New Share Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_528641_1_1">Class Of Warrant Or Right Issuable With Each New Share Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_528641_2_1">Number of common stock to be purchased with each warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock" xlink:to="galt_ClassOfWarrantOrRightIssuableWithEachNewShareOfCommonStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightIssued" xlink:label="galt_ClassOfWarrantOrRightIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightIssued_lbl" xml:lang="en-US" id="id_1168147_542787_3_1">Class of Warrant or Right, Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightIssued_lbl" xml:lang="en-US" id="id_1168147_542787_1_1">Class Of Warrant Or Right Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightIssued_lbl" xml:lang="en-US" id="id_1168147_542787_2_1">Warrants issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightIssued" xlink:to="galt_ClassOfWarrantOrRightIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightIssuedInPeriod" xlink:label="galt_ClassOfWarrantOrRightIssuedInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_543438_3_1">Class of Warrant or Right, Issued in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_543438_1_1">Class Of Warrant Or Right Issued In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_543438_2_1">Warrants issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="galt_ClassOfWarrantOrRightIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_543438_12_1">Warrants issued in period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightIssuedInPeriod" xlink:to="galt_ClassOfWarrantOrRightIssuedInPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_510461_1_1">Class Of Warrant Or Right Number Of Securities Called By Warrants Or Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xml:lang="en-US" id="id_1168147_510461_2_1">Warrants to purchase shares of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments" xlink:label="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments_lbl" xml:lang="en-US" id="id_1168147_612018_3_1">Class of Warrant or Right Number of Shares Vesting in Equal Installments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments_lbl" xml:lang="en-US" id="id_1168147_612018_1_1">Class Of Warrant Or Right Number Of Shares Vesting In Equal Installments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments_lbl" xml:lang="en-US" id="id_1168147_612018_2_1">Warrant vesting per month</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments" xlink:to="galt_ClassOfWarrantOrRightNumberOfSharesVestingInEqualInstallments_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xml:lang="en-US" id="id_1168147_504378_1_1">Class Of Warrant Or Right Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xml:lang="en-US" id="id_1168147_504378_2_1">Number Issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClassOfWarrantOrRightTerm" xlink:label="galt_ClassOfWarrantOrRightTerm"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClassOfWarrantOrRightTerm_lbl" xml:lang="en-US" id="id_1168147_529873_3_1">Class of Warrant or Right, Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClassOfWarrantOrRightTerm_lbl" xml:lang="en-US" id="id_1168147_529873_1_1">Class Of Warrant Or Right Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClassOfWarrantOrRightTerm_lbl" xml:lang="en-US" id="id_1168147_529873_2_1">Term of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClassOfWarrantOrRightTerm" xlink:to="galt_ClassOfWarrantOrRightTerm_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ClosingStockPriceOfCommonStock" xlink:label="galt_ClosingStockPriceOfCommonStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ClosingStockPriceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_588137_3_1">Closing Stock Price Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ClosingStockPriceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_588137_1_1">Closing Stock Price Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ClosingStockPriceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_588137_2_1">Minimum closing price of the common stock to require conversion</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ClosingStockPriceOfCommonStock" xlink:to="galt_ClosingStockPriceOfCommonStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator" xlink:label="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator_lbl" xml:lang="en-US" id="id_1168147_551569_3_1">Collaboration Agreement, Aggregate Research and Development Funded by Collaborator</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator_lbl" xml:lang="en-US" id="id_1168147_551569_1_1">Collaboration Agreement Aggregate Research And Development Funded By Collaborator</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator_lbl" xml:lang="en-US" id="id_1168147_551569_2_1">Collaborative funding agreement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator" xlink:to="galt_CollaborationAgreementAggregateResearchAndDevelopmentFundedByCollaborator_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CollaborativeArrangementDisclosureTextBlock" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_499347_1_1">Collaborative Arrangement Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_499347_2_1">Agreement with PROCAPS S.A. and Research Grants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CollaborativeArrangementDisclosureTextBlock" xlink:to="us-gaap_CollaborativeArrangementDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xml:lang="en-US" id="id_1168147_512242_1_1">Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl" xml:lang="en-US" id="id_1168147_512242_2_1">Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems" xlink:to="us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US" id="id_1168147_501924_1_1">Commitments And Contingencies</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US" id="id_1168147_501924_2_1">Commitments and contingencies (Note 11)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_512236_1_1">Commitments And Contingencies Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_512236_2_1">Commitments and Contingencies</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommitmentsAndContingenciesLineItems" xlink:label="galt_CommitmentsAndContingenciesLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommitmentsAndContingenciesLineItems_lbl" xml:lang="en-US" id="id_1168147_545733_3_1">Commitments and Contingencies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommitmentsAndContingenciesLineItems_lbl" xml:lang="en-US" id="id_1168147_545733_1_1">Commitments And Contingencies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommitmentsAndContingenciesLineItems_lbl" xml:lang="en-US" id="id_1168147_545733_2_1">Commitments and Contingencies [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommitmentsAndContingenciesLineItems" xlink:to="galt_CommitmentsAndContingenciesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommitmentsAndContingenciesTable" xlink:label="galt_CommitmentsAndContingenciesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommitmentsAndContingenciesTable_lbl" xml:lang="en-US" id="id_1168147_545732_3_1">Commitments and Contingencies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommitmentsAndContingenciesTable_lbl" xml:lang="en-US" id="id_1168147_545732_1_1">Commitments And Contingencies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommitmentsAndContingenciesTable_lbl" xml:lang="en-US" id="id_1168147_545732_2_1">Commitments and Contingencies [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommitmentsAndContingenciesTable" xlink:to="galt_CommitmentsAndContingenciesTable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonSharesIssuableUponConversionOfConvertibleStock" xlink:label="galt_CommonSharesIssuableUponConversionOfConvertibleStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xml:lang="en-US" id="id_1168147_528314_3_1">Common Shares Issuable upon Conversion of Convertible Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xml:lang="en-US" id="id_1168147_528314_1_1">Common Shares Issuable Upon Conversion Of Convertible Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonSharesIssuableUponConversionOfConvertibleStock_lbl" xml:lang="en-US" id="id_1168147_528314_2_1">Common shares issuable upon conversion of preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonSharesIssuableUponConversionOfConvertibleStock" xlink:to="galt_CommonSharesIssuableUponConversionOfConvertibleStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockAdditionalSharesIssued" xlink:label="galt_CommonStockAdditionalSharesIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockAdditionalSharesIssued_lbl" xml:lang="en-US" id="id_1168147_529033_3_1">Common Stock Additional Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockAdditionalSharesIssued_lbl" xml:lang="en-US" id="id_1168147_529033_1_1">Common Stock Additional Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockAdditionalSharesIssued_lbl" xml:lang="en-US" id="id_1168147_529033_2_1">Additional share Issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockAdditionalSharesIssued" xlink:to="galt_CommonStockAdditionalSharesIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockAndWarrantsMember" xlink:label="galt_CommonStockAndWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockAndWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_534959_3_1">Common Stock and Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockAndWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_534959_1_1">Common Stock And Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockAndWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_534959_2_1">Common Stock and Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockAndWarrantsMember" xlink:to="galt_CommonStockAndWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockIssuableSharesIssuable" xlink:label="galt_CommonStockIssuableSharesIssuable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockIssuableSharesIssuable_lbl" xml:lang="en-US" id="id_1168147_528773_3_1">Common Stock Issuable Shares, Issuable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockIssuableSharesIssuable_lbl" xml:lang="en-US" id="id_1168147_528773_1_1">Common Stock Issuable Shares Issuable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockIssuableSharesIssuable_lbl" xml:lang="en-US" id="id_1168147_528773_2_1">Common stock issuable for compensation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockIssuableSharesIssuable" xlink:to="galt_CommonStockIssuableSharesIssuable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockMarketPrice" xlink:label="galt_CommonStockMarketPrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockMarketPrice_lbl" xml:lang="en-US" id="id_1168147_618068_3_1">Common Stock Market Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockMarketPrice_lbl" xml:lang="en-US" id="id_1168147_618068_1_1">Common Stock Market Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockMarketPrice_lbl" xml:lang="en-US" id="id_1168147_618068_2_1">Market value of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockMarketPrice" xlink:to="galt_CommonStockMarketPrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockMember" xlink:label="us-gaap_CommonStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockMember_lbl" xml:lang="en-US" id="id_1168147_501348_1_1">Common Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockMember_lbl" xml:lang="en-US" id="id_1168147_501348_2_1">Common Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockOptionsGrantedShares" xlink:label="galt_CommonStockOptionsGrantedShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockOptionsGrantedShares_lbl" xml:lang="en-US" id="id_1168147_528688_3_1">Common Stock Options Granted, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockOptionsGrantedShares_lbl" xml:lang="en-US" id="id_1168147_528688_1_1">Common Stock Options Granted Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockOptionsGrantedShares_lbl" xml:lang="en-US" id="id_1168147_528688_2_1">Common stock options granted, shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockOptionsGrantedShares" xlink:to="galt_CommonStockOptionsGrantedShares_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_512817_1_1">Common Stock Par Or Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_512817_2_1">Common stock, par value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_502587_1_1">Common Stock Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_502587_2_1">Common stock, shares authorized</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US" id="id_1168147_510226_1_1">Common Stock Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US" id="id_1168147_510226_2_1">Common stock, issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="us-gaap_CommonStockSharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_504150_1_1">Common Stock Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_504150_2_1">Common stock, outstanding</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable" xlink:label="us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable_lbl" xml:lang="en-US" id="id_1168147_512259_1_1">Common Stock Share Subscribed But Unissued Subscriptions Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable_lbl" xml:lang="en-US" id="id_1168147_512259_2_1">Common stock, subscription receivable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable" xlink:to="us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US" id="id_1168147_512456_1_1">Common Stock Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US" id="id_1168147_512456_2_1">Common stock, $0.001 par value; 50,000,000 shares authorized at December 31, 2012 and 2011, 16,060,853 and 12,919,538 issued and outstanding at December 31, 2012 and 2011, respectively</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockWarrantsIssued" xlink:label="galt_CommonStockWarrantsIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockWarrantsIssued_lbl" xml:lang="en-US" id="id_1168147_529026_3_1">Common Stock Warrants Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockWarrantsIssued_lbl" xml:lang="en-US" id="id_1168147_529026_1_1">Common Stock Warrants Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockWarrantsIssued_lbl" xml:lang="en-US" id="id_1168147_529026_2_1">Warrants to purchase shares of common stock issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockWarrantsIssued" xlink:to="galt_CommonStockWarrantsIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CommonStockWarrantsTerm" xlink:label="galt_CommonStockWarrantsTerm"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CommonStockWarrantsTerm_lbl" xml:lang="en-US" id="id_1168147_530198_3_1">Common Stock Warrants, Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CommonStockWarrantsTerm_lbl" xml:lang="en-US" id="id_1168147_530198_1_1">Common Stock Warrants Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CommonStockWarrantsTerm_lbl" xml:lang="en-US" id="id_1168147_530198_2_1">Common stock warrant term</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CommonStockWarrantsTerm" xlink:to="galt_CommonStockWarrantsTerm_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:label="us-gaap_CompensationRelatedCostsPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CompensationRelatedCostsPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_499832_1_1">Compensation Related Costs Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CompensationRelatedCostsPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_499832_2_1">Stock-Based Compensation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CompensationRelatedCostsPolicyTextBlock" xlink:to="us-gaap_CompensationRelatedCostsPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_563889_3_1">Components Of Deferred Tax Assets And Liabilities [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_563889_1_1">Components Of Deferred Tax Assets And Liabilities [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_563889_2_1">Components Of Deferred Tax Assets And Liabilities [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems" xlink:to="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_563801_3_1">Components Of Deferred Tax Assets And Liabilities [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_563801_1_1">Components Of Deferred Tax Assets And Liabilities [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_563801_2_1">Components Of Deferred Tax Assets And Liabilities [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable" xlink:to="galt_ComponentsOfDeferredTaxAssetsAndLiabilitiesTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_509844_1_1">Comprehensive Income Policy Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_509844_2_1">Comprehensive Income (Loss)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:to="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ComputerAndOfficeEquipmentMember" xlink:label="galt_ComputerAndOfficeEquipmentMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ComputerAndOfficeEquipmentMember_lbl" xml:lang="en-US" id="id_1168147_537720_3_1">Computer and Office Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ComputerAndOfficeEquipmentMember_lbl" xml:lang="en-US" id="id_1168147_537720_1_1">Computer And Office Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ComputerAndOfficeEquipmentMember_lbl" xml:lang="en-US" id="id_1168147_537720_2_1">Computer and office equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ComputerAndOfficeEquipmentMember" xlink:to="galt_ComputerAndOfficeEquipmentMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConcentrationRiskCreditRisk" xlink:label="us-gaap_ConcentrationRiskCreditRisk"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xml:lang="en-US" id="id_1168147_503397_1_1">Concentration Risk Credit Risk</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xml:lang="en-US" id="id_1168147_503397_2_1">Concentration of Credit Risk</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskCreditRisk" xlink:to="us-gaap_ConcentrationRiskCreditRisk_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="us-gaap_ConsolidationPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_510597_1_1">Consolidation Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_510597_2_1">Basis of Consolidation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConsolidationPolicyTextBlock" xlink:to="us-gaap_ConsolidationPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ConsultantMember" xlink:label="galt_ConsultantMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ConsultantMember_lbl" xml:lang="en-US" id="id_1168147_551546_3_1">Consultant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ConsultantMember_lbl" xml:lang="en-US" id="id_1168147_551546_1_1">Consultant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ConsultantMember_lbl" xml:lang="en-US" id="id_1168147_551546_2_1">Consultant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ConsultantMember" xlink:to="galt_ConsultantMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ConsultingAgreementMember" xlink:label="galt_ConsultingAgreementMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610123_3_1">Consulting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610123_1_1">Consulting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610123_2_1">Consulting Agreement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ConsultingAgreementMember" xlink:to="galt_ConsultingAgreementMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ConsultingServicesMember" xlink:label="galt_ConsultingServicesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ConsultingServicesMember_lbl" xml:lang="en-US" id="id_1168147_534083_3_1">Consulting Services [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ConsultingServicesMember_lbl" xml:lang="en-US" id="id_1168147_534083_1_1">Consulting Services [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ConsultingServicesMember_lbl" xml:lang="en-US" id="id_1168147_534083_2_1">Consulting Services</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ConsultingServicesMember" xlink:to="galt_ConsultingServicesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ContingentlyIssuableSharesMember" xlink:label="us-gaap_ContingentlyIssuableSharesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContingentlyIssuableSharesMember_lbl" xml:lang="en-US" id="id_1168147_507534_1_1">Contingently Issuable Shares [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ContingentlyIssuableSharesMember_lbl" xml:lang="en-US" id="id_1168147_507534_2_1">Contingently Issuable Shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContingentlyIssuableSharesMember" xlink:to="us-gaap_ContingentlyIssuableSharesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ConversionOfAccruedLiabilitiesToCommonStock" xlink:label="galt_ConversionOfAccruedLiabilitiesToCommonStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ConversionOfAccruedLiabilitiesToCommonStock_lbl" xml:lang="en-US" id="id_1168147_523456_3_1">Conversion Of Accrued Liabilities To Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ConversionOfAccruedLiabilitiesToCommonStock_lbl" xml:lang="en-US" id="id_1168147_523456_1_1">Conversion Of Accrued Liabilities To Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ConversionOfAccruedLiabilitiesToCommonStock_lbl" xml:lang="en-US" id="id_1168147_523456_2_1">Conversion of accrued expenses into common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ConversionOfAccruedLiabilitiesToCommonStock" xlink:to="galt_ConversionOfAccruedLiabilitiesToCommonStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ConversionOfStockConversionPrice" xlink:label="galt_ConversionOfStockConversionPrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ConversionOfStockConversionPrice_lbl" xml:lang="en-US" id="id_1168147_574410_3_1">Conversion Of Stock Conversion Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ConversionOfStockConversionPrice_lbl" xml:lang="en-US" id="id_1168147_574410_1_1">Conversion Of Stock Conversion Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ConversionOfStockConversionPrice_lbl" xml:lang="en-US" id="id_1168147_574410_2_1">Convertible stock conversion price</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ConversionOfStockConversionPrice" xlink:to="galt_ConversionOfStockConversionPrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConversionOfStockSharesConverted1" xlink:label="us-gaap_ConversionOfStockSharesConverted1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xml:lang="en-US" id="id_1168147_512486_1_1">Conversion Of Stock Shares Converted 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xml:lang="en-US" id="id_1168147_512486_2_1">Convertible preferred shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xml:lang="en-US" id="id_1168147_512486_12_1">Series C prefer stock converted to common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockSharesConverted1" xlink:to="us-gaap_ConversionOfStockSharesConverted1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConversionOfStockSharesIssued1" xlink:label="us-gaap_ConversionOfStockSharesIssued1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_507319_1_1">Conversion Of Stock Shares Issued 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_507319_32_1">Number of shares issued in the conversion of options in a noncash transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_507319_2_1">Common stocks issued upon conversion of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_507319_12_1">Conversion of share, common stock issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockSharesIssued1" xlink:to="us-gaap_ConversionOfStockSharesIssued1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleDebt" xlink:label="us-gaap_ConvertibleDebt"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_509400_1_1">Convertible Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_509400_2_1">Convertible debt outstanding principal and accrued interest</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ConvertibleNotesPayableMember" xlink:label="us-gaap_ConvertibleNotesPayableMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleNotesPayableMember_lbl" xml:lang="en-US" id="id_1168147_506023_1_1">Convertible Notes Payable [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleNotesPayableMember_lbl" xml:lang="en-US" id="id_1168147_506023_2_1">Convertible Notes Payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleNotesPayableMember" xlink:to="us-gaap_ConvertibleNotesPayableMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross" xlink:label="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross_lbl" xml:lang="en-US" id="id_1168147_519614_3_1">Cumulative Effect of Initial Adoption of New Accounting Principle, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross_lbl" xml:lang="en-US" id="id_1168147_519614_1_1">Cumulative Effect Of Initial Adoption Of New Accounting Principle Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross_lbl" xml:lang="en-US" id="id_1168147_519614_2_1">Cumulative effect of adoption of new accounting principle</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross" xlink:to="galt_CumulativeEffectOfInitialAdoptionOfNewAccountingPrincipleGross_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="dei_CurrentFiscalYearEndDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US" id="id_1168147_497832_1_1">Current Fiscal Year End Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xml:lang="en-US" id="id_1168147_497832_2_1">Current Fiscal Year End Date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="us-gaap_DebtConversionConvertedInstrumentAmount1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtConversionConvertedInstrumentAmount1_lbl" xml:lang="en-US" id="id_1168147_502942_1_1">Debt Conversion Converted Instrument Amount 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtConversionConvertedInstrumentAmount1_lbl" xml:lang="en-US" id="id_1168147_502942_2_1">Conversion of extension costs related to convertible notes into common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:to="us-gaap_DebtConversionConvertedInstrumentAmount1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_502593_1_1">Debt Conversion Converted Instrument Shares Issued 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1_lbl" xml:lang="en-US" id="id_1168147_502593_2_1">Debt conversion, shares issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:to="us-gaap_DebtConversionConvertedInstrumentSharesIssued1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1" xlink:label="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1_lbl" xml:lang="en-US" id="id_1168147_512825_1_1">Debt Conversion Converted Instrument Warrants Or Options Issued 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1_lbl" xml:lang="en-US" id="id_1168147_512825_2_1">Debt conversion, warrants issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1" xlink:to="us-gaap_DebtConversionConvertedInstrumentWarrantsOrOptionsIssued1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtConversionOriginalDebtAmount1" xlink:label="us-gaap_DebtConversionOriginalDebtAmount1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtConversionOriginalDebtAmount1_lbl" xml:lang="en-US" id="id_1168147_504249_1_1">Debt Conversion Original Debt Amount 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtConversionOriginalDebtAmount1_lbl" xml:lang="en-US" id="id_1168147_504249_2_1">Conversion and redemptions of convertible notes and accrued interest into common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtConversionOriginalDebtAmount1" xlink:to="us-gaap_DebtConversionOriginalDebtAmount1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xml:lang="en-US" id="id_1168147_503053_1_1">Debt Instrument Convertible Conversion Price 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xml:lang="en-US" id="id_1168147_503053_2_1">Conversion price per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:to="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US" id="id_1168147_500674_1_1">Debt Instrument Interest Rate Stated Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US" id="id_1168147_500674_2_1">Promissory note, interest rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624807_3_1">December Eight Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624807_1_1">December Eight Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624807_2_1">December 8, 2009 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember" xlink:to="galt_DecemberEightTwentyZeroNineSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DecemberNineTwentyTenConsultantWarrantsMember" xlink:label="galt_DecemberNineTwentyTenConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DecemberNineTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625047_3_1">December Nine Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DecemberNineTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625047_1_1">December Nine Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DecemberNineTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625047_2_1">December 9, 2010 Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DecemberNineTwentyTenConsultantWarrantsMember" xlink:to="galt_DecemberNineTwentyTenConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember" xlink:label="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625048_3_1">December Thirty Twenty Ten Placement Agent Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625048_1_1">December Thirty Twenty Ten Placement Agent Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_625048_2_1">December 30, 2010 Placement Agent Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember" xlink:to="galt_DecemberThirtyTwentyTenPlacementAgentWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DecreaseInAdditionalPaidInCapital" xlink:label="galt_DecreaseInAdditionalPaidInCapital"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DecreaseInAdditionalPaidInCapital_lbl" xml:lang="en-US" id="id_1168147_527615_3_1">Decrease in Additional Paid in Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DecreaseInAdditionalPaidInCapital_lbl" xml:lang="en-US" id="id_1168147_527615_1_1">Decrease In Additional Paid In Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DecreaseInAdditionalPaidInCapital_lbl" xml:lang="en-US" id="id_1168147_527615_2_1">Decrease in additional paid-in-capital</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DecreaseInAdditionalPaidInCapital" xlink:to="galt_DecreaseInAdditionalPaidInCapital_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTitleOfIndividualAxis" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTitleOfIndividualAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualShareBasedPaymentsByTitleOfIndividualAxis_lbl" xml:lang="en-US" id="id_1168147_504051_1_1">Deferred Compensation Arrangement With Individual Share Based Payments By Title Of Individual [Axis]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DisclosureSummaryOfWarrantActivityAbstract_lbl" xml:lang="en-US" id="id_1168147_695724_2_1">Disclosure - Summary of Warrant Activity [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DisclosureUnvestedRestrictedSharesAbstract_lbl" xml:lang="en-US" id="id_1168147_695725_3_1">Disclosure - Unvested Restricted Shares [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DisclosureUnvestedRestrictedSharesAbstract_lbl" xml:lang="en-US" id="id_1168147_695725_1_1">Disclosure Unvested Restricted Shares [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DisclosureUnvestedRestrictedSharesAbstract_lbl" xml:lang="en-US" id="id_1168147_695725_2_1">Disclosure - Unvested Restricted Shares [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DisclosureUnvestedRestrictedSharesAbstract" xlink:to="galt_DisclosureUnvestedRestrictedSharesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract" xlink:label="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_695726_3_1">Disclosure - Warrants and Warrant Liabilities - Additional Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_695726_1_1">Disclosure Warrants And Warrant Liabilities Additional Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_695726_2_1">Disclosure - Warrants and Warrant Liabilities - Additional Information [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract" xlink:to="galt_DisclosureWarrantsAndWarrantLiabilitiesAdditionalInformationAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DisclosureWeightedAverageAssumptionsUsedToDetermineFairValueOfOptionsGrantedAbstract" xlink:label="galt_DisclosureWeightedAverageAssumptionsUsedToDetermineFairValueOfOptionsGrantedAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DisclosureWeightedAverageAssumptionsUsedToDetermineFairValueOfOptionsGrantedAbstract_lbl" xml:lang="en-US" id="id_1168147_695727_3_1">Disclosure - Weighted Average Assumptions Used to Determine Fair Value of Options Granted [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DisclosureWeightedAverageAssumptionsUsedToDetermineFairValueOfOptionsGrantedAbstract_lbl" xml:lang="en-US" id="id_1168147_695727_1_1">Disclosure Weighted Average Assumptions Used To Determine Fair Value Of Options Granted [Abstract]</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendAccrualRateOnInvestmentsInAffiliates" xlink:label="galt_DividendAccrualRateOnInvestmentsInAffiliates"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendAccrualRateOnInvestmentsInAffiliates_lbl" xml:lang="en-US" id="id_1168147_567360_3_1">Dividend Accrual Rate On Investments In Affiliates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendAccrualRateOnInvestmentsInAffiliates_lbl" xml:lang="en-US" id="id_1168147_567360_1_1">Dividend Accrual Rate On Investments In Affiliates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendAccrualRateOnInvestmentsInAffiliates_lbl" xml:lang="en-US" id="id_1168147_567360_2_1">Dividends accrue rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendAccrualRateOnInvestmentsInAffiliates" xlink:to="galt_DividendAccrualRateOnInvestmentsInAffiliates_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendAsPercentageOfNetSales" xlink:label="galt_DividendAsPercentageOfNetSales"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendAsPercentageOfNetSales_lbl" xml:lang="en-US" id="id_1168147_624871_3_1">Dividend as Percentage of Net Sales</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendAsPercentageOfNetSales_lbl" xml:lang="en-US" id="id_1168147_624871_1_1">Dividend As Percentage Of Net Sales</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendAsPercentageOfNetSales_lbl" xml:lang="en-US" id="id_1168147_624871_2_1">Dividend as percentage of net sales</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendAsPercentageOfNetSales" xlink:to="galt_DividendAsPercentageOfNetSales_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendEquivalentRights" xlink:label="galt_DividendEquivalentRights"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendEquivalentRights_lbl" xml:lang="en-US" id="id_1168147_528946_3_1">Dividend Equivalent Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendEquivalentRights_lbl" xml:lang="en-US" id="id_1168147_528946_1_1">Dividend Equivalent Rights</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendEquivalentRights_lbl" xml:lang="en-US" id="id_1168147_528946_2_1">Dividend rights issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendEquivalentRights" xlink:to="galt_DividendEquivalentRights_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendPaymentDateDayAndMonth" xlink:label="galt_DividendPaymentDateDayAndMonth"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendPaymentDateDayAndMonth_lbl" xml:lang="en-US" id="id_1168147_548366_3_1">Dividend Payment Date Day And Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendPaymentDateDayAndMonth_lbl" xml:lang="en-US" id="id_1168147_548366_1_1">Dividend Payment Date Day And Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendPaymentDateDayAndMonth_lbl" xml:lang="en-US" id="id_1168147_548366_2_1">Dividend payable date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendPaymentDateDayAndMonth" xlink:to="galt_DividendPaymentDateDayAndMonth_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendPaymentOneMember" xlink:label="galt_DividendPaymentOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendPaymentOneMember_lbl" xml:lang="en-US" id="id_1168147_517594_3_1">Dividend Payment 1st [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendPaymentOneMember_lbl" xml:lang="en-US" id="id_1168147_517594_1_1">Dividend Payment One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendPaymentOneMember_lbl" xml:lang="en-US" id="id_1168147_517594_2_1">Series A Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendPaymentOneMember" xlink:to="galt_DividendPaymentOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DividendPaymentTwoMember" xlink:label="galt_DividendPaymentTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DividendPaymentTwoMember_lbl" xml:lang="en-US" id="id_1168147_517595_3_1">Dividend Payment 2nd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DividendPaymentTwoMember_lbl" xml:lang="en-US" id="id_1168147_517595_1_1">Dividend Payment Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DividendPaymentTwoMember_lbl" xml:lang="en-US" id="id_1168147_517595_2_1">Series B One Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DividendPaymentTwoMember" xlink:to="galt_DividendPaymentTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPayableAmountPerShare" xlink:label="us-gaap_DividendsPayableAmountPerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xml:lang="en-US" id="id_1168147_512483_1_1">Dividends Payable Amount Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DividendsPayableAmountPerShare_lbl" xml:lang="en-US" id="id_1168147_512483_2_1">Dividend per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsPayableAmountPerShare" xlink:to="us-gaap_DividendsPayableAmountPerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPayableCurrent" xlink:label="us-gaap_DividendsPayableCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DividendsPayableCurrent_lbl" xml:lang="en-US" id="id_1168147_513989_1_1">Dividends Payable Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DividendsPayableCurrent_lbl" xml:lang="en-US" id="id_1168147_513989_2_1">Accrued dividends payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsPayableCurrent" xlink:to="us-gaap_DividendsPayableCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_DividendsPreferredStock" xlink:label="us-gaap_DividendsPreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DividendsPreferredStock_lbl" xml:lang="en-US" id="id_1168147_509129_1_1">Dividends Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DividendsPreferredStock_lbl" xml:lang="en-US" id="id_1168147_509129_2_1">Convertible preferred stock dividend</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_DividendsPreferredStock_lbl" xml:lang="en-US" id="id_1168147_509129_8_1">Convertible preferred stock dividend</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DividendsPreferredStock" xlink:to="us-gaap_DividendsPreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_DocumentDocumentandEntityInformationAbstract" xlink:label="galt_DocumentDocumentandEntityInformationAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_DocumentDocumentandEntityInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_604557_3_1">Document Documentand Entity Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_DocumentDocumentandEntityInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_604557_1_1">Document Documentand Entity Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_DocumentDocumentandEntityInformationAbstract_lbl" xml:lang="en-US" id="id_1168147_604557_2_1">Document Documentand Entity Information [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_DocumentDocumentandEntityInformationAbstract" xlink:to="galt_DocumentDocumentandEntityInformationAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="dei_DocumentFiscalPeriodFocus"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US" id="id_1168147_497755_1_1">Document Fiscal Period Focus</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xml:lang="en-US" id="id_1168147_497755_2_1">Document Fiscal Period Focus</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="dei_DocumentFiscalYearFocus"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US" id="id_1168147_497802_1_1">Document Fiscal Year Focus</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentFiscalYearFocus_lbl" xml:lang="en-US" id="id_1168147_497802_2_1">Document Fiscal Year Focus</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="dei_DocumentInformationLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentInformationLineItems_lbl" xml:lang="en-US" id="id_1168147_497700_1_1">Document Information [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentInformationLineItems_lbl" xml:lang="en-US" id="id_1168147_497700_2_1">Document Information [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentInformationLineItems" xlink:to="dei_DocumentInformationLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="dei_DocumentPeriodEndDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US" id="id_1168147_497817_1_1">Document Period End Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentPeriodEndDate_lbl" xml:lang="en-US" id="id_1168147_497817_2_1">Document Period End Date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_DocumentType" xlink:label="dei_DocumentType"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentType_lbl" xml:lang="en-US" id="id_1168147_497812_1_1">Document Type</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_DocumentType_lbl" xml:lang="en-US" id="id_1168147_497812_2_1">Document Type</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_502527_1_1">Earnings Per Share Basic And Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_502527_2_1">Basic and diluted net loss per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_502527_12_1">Net loss per common share-basic and diluted</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract_lbl" xml:lang="en-US" id="id_1168147_505198_1_1">Earnings Per Share Basic And Diluted [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract_lbl" xml:lang="en-US" id="id_1168147_505198_2_1">Basic and diluted net loss per common share:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:to="us-gaap_EarningsPerShareBasicAndDilutedAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_EmployeeMember_lbl" xml:lang="en-US" id="id_1168147_533527_3_1">Employee [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US" id="id_1168147_497763_1_1">Entity Voluntary Filers</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US" id="id_1168147_497831_1_1">Entity Well Known Seasoned Issuer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US" id="id_1168147_497831_2_1">Entity Well-known Seasoned Issuer</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityComponentDomain_lbl" xml:lang="en-US" id="id_1168147_501491_1_1">Equity Component [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityComponentDomain_lbl" xml:lang="en-US" id="id_1168147_501491_2_1">Equity Component [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis" xlink:label="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_lbl" xml:lang="en-US" id="id_1168147_510623_1_1">Equity Interest Issued Or Issuable By Type [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_lbl" xml:lang="en-US" id="id_1168147_510623_2_1">Equity Interest Type [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis" xlink:to="us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain" xlink:label="us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityInterestIssuedOrIssuableTypeDomain_lbl" xml:lang="en-US" id="id_1168147_502319_1_1">Equity Interest Issued Or Issuable Type [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityInterestIssuedOrIssuableTypeDomain_lbl" xml:lang="en-US" id="id_1168147_502319_2_1">Equity Interest Issued or Issuable, Type [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityInterestIssuedOrIssuableTypeDomain" xlink:to="us-gaap_EquityInterestIssuedOrIssuableTypeDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityIssuanceDates" xlink:label="us-gaap_EquityIssuanceDates"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityIssuanceDates_lbl" xml:lang="en-US" id="id_1168147_508630_1_1">Equity Issuance Dates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityIssuanceDates_lbl" xml:lang="en-US" id="id_1168147_508630_2_1">Issuance of stock, Date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityIssuanceDates" xlink:to="us-gaap_EquityIssuanceDates_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityIssuancePerShareAmount" xlink:label="us-gaap_EquityIssuancePerShareAmount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityIssuancePerShareAmount_lbl" xml:lang="en-US" id="id_1168147_513910_1_1">Equity Issuance Per Share Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityIssuancePerShareAmount_lbl" xml:lang="en-US" id="id_1168147_513910_2_1">Common stock price per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EquityIssuancePerShareAmount_lbl" xml:lang="en-US" id="id_1168147_513910_12_1">Stock price per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityIssuancePerShareAmount" xlink:to="us-gaap_EquityIssuancePerShareAmount_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_EquityIssuedByPeriodAxis" xlink:label="galt_EquityIssuedByPeriodAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_EquityIssuedByPeriodAxis_lbl" xml:lang="en-US" id="id_1168147_542884_3_1">Equity Issued by Period [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_EquityIssuedByPeriodAxis_lbl" xml:lang="en-US" id="id_1168147_542884_1_1">Equity Issued By Period [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_EquityIssuedByPeriodAxis_lbl" xml:lang="en-US" id="id_1168147_542884_2_1">Equity Issued by Period [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_EquityIssuedByPeriodAxis" xlink:to="galt_EquityIssuedByPeriodAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_EquityIssuedByPeriodDomain" xlink:label="galt_EquityIssuedByPeriodDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_EquityIssuedByPeriodDomain_lbl" xml:lang="en-US" id="id_1168147_542885_3_1">Equity Issued by Period [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_EquityIssuedByPeriodDomain_lbl" xml:lang="en-US" id="id_1168147_542885_1_1">Equity Issued By Period [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_EquityIssuedByPeriodDomain_lbl" xml:lang="en-US" id="id_1168147_542885_2_1">Equity Issued by Period [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_EquityIssuedByPeriodDomain" xlink:to="galt_EquityIssuedByPeriodDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_EquityLineItems" xlink:label="galt_EquityLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_EquityLineItems_lbl" xml:lang="en-US" id="id_1168147_551781_3_1">Equity [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_EquityLineItems_lbl" xml:lang="en-US" id="id_1168147_551781_1_1">Equity [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_EquityLineItems_lbl" xml:lang="en-US" id="id_1168147_551781_2_1">Equity [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_EquityLineItems" xlink:to="galt_EquityLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_EquityMethodInvestments" xlink:label="us-gaap_EquityMethodInvestments"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityMethodInvestments_lbl" xml:lang="en-US" id="id_1168147_498886_1_1">Equity Method Investments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityMethodInvestments_lbl" xml:lang="en-US" id="id_1168147_498886_2_1">Equity investment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestments" xlink:to="us-gaap_EquityMethodInvestments_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_EquityTable" xlink:label="galt_EquityTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_EquityTable_lbl" xml:lang="en-US" id="id_1168147_555510_3_1">Equity [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_EquityTable_lbl" xml:lang="en-US" id="id_1168147_555510_1_1">Equity [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_EquityTable_lbl" xml:lang="en-US" id="id_1168147_555510_2_1">Equity [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_EquityTable" xlink:to="galt_EquityTable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ExercisePriceOfWarrantsExpiredWithoutExercise" xlink:label="galt_ExercisePriceOfWarrantsExpiredWithoutExercise"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ExercisePriceOfWarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595666_3_1">Exercise Price Of Warrants Expired Without Exercise</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ExercisePriceOfWarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595666_1_1">Exercise Price Of Warrants Expired Without Exercise</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ExercisePriceOfWarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595666_2_1">Exercise price of warrants expired unexercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ExercisePriceOfWarrantsExpiredWithoutExercise" xlink:to="galt_ExercisePriceOfWarrantsExpiredWithoutExercise_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ExtensionOfExercisePeriod" xlink:label="galt_ExtensionOfExercisePeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ExtensionOfExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_621208_3_1">Extension Of Exercise Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ExtensionOfExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_621208_1_1">Extension Of Exercise Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ExtensionOfExercisePeriod_lbl" xml:lang="en-US" id="id_1168147_621208_2_1">Extension of exercise period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ExtensionOfExercisePeriod" xlink:to="galt_ExtensionOfExercisePeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ExtinguishmentOfDebtAxis" xlink:label="us-gaap_ExtinguishmentOfDebtAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExtinguishmentOfDebtAxis_lbl" xml:lang="en-US" id="id_1168147_512722_1_1">Extinguishment Of Debt [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ExtinguishmentOfDebtAxis_lbl" xml:lang="en-US" id="id_1168147_512722_2_1">Extinguishment of Debt [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExtinguishmentOfDebtAxis" xlink:to="us-gaap_ExtinguishmentOfDebtAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ExtinguishmentOfDebtTypeDomain" xlink:label="us-gaap_ExtinguishmentOfDebtTypeDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExtinguishmentOfDebtTypeDomain_lbl" xml:lang="en-US" id="id_1168147_498366_1_1">Extinguishment Of Debt Type [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ExtinguishmentOfDebtTypeDomain_lbl" xml:lang="en-US" id="id_1168147_498366_2_1">Extinguishment of Debt, Type [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExtinguishmentOfDebtTypeDomain" xlink:to="us-gaap_ExtinguishmentOfDebtTypeDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FairMarketValueOfShares" xlink:label="galt_FairMarketValueOfShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FairMarketValueOfShares_lbl" xml:lang="en-US" id="id_1168147_587531_3_1">Fair Market Value Of Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FairMarketValueOfShares_lbl" xml:lang="en-US" id="id_1168147_587531_1_1">Fair Market Value Of Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FairMarketValueOfShares_lbl" xml:lang="en-US" id="id_1168147_587531_2_1">Fair market value of shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FairMarketValueOfShares" xlink:to="galt_FairMarketValueOfShares_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US" id="id_1168147_511193_1_1">Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl" xml:lang="en-US" id="id_1168147_511193_2_1">Fair Value by Asset Class [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsExercisePrice" xlink:label="us-gaap_FairValueAssumptionsExercisePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssumptionsExercisePrice_lbl" xml:lang="en-US" id="id_1168147_505106_1_1">Fair Value Assumptions Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssumptionsExercisePrice_lbl" xml:lang="en-US" id="id_1168147_505106_2_1">Fair value assumptions, warrants exercise price</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExercisePrice" xlink:to="us-gaap_FairValueAssumptionsExercisePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl" xml:lang="en-US" id="id_1168147_505067_1_1">Fair Value Assumptions Expected Dividend Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl" xml:lang="en-US" id="id_1168147_505067_2_1">Fair value assumptions, dividend rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsExpectedTerm" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm_lbl" xml:lang="en-US" id="id_1168147_507494_1_1">Fair Value Assumptions Expected Term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm_lbl" xml:lang="en-US" id="id_1168147_507494_2_1">Fair value assumptions, term of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedTerm" xlink:to="us-gaap_FairValueAssumptionsExpectedTerm_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl" xml:lang="en-US" id="id_1168147_507152_1_1">Fair Value Assumptions Expected Volatility Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl" xml:lang="en-US" id="id_1168147_507152_2_1">Fair value assumptions, volatility rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueAssumptionsRiskFreeInterestRate_lbl" xml:lang="en-US" id="id_1168147_499535_2_1">Fair value assumptions, risk free interest rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_FairValueAssumptionsRiskFreeInterestRate_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueByAssetClassAxis_lbl" xml:lang="en-US" id="id_1168147_511283_2_1">Asset Class [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByAssetClassAxis" xlink:to="us-gaap_FairValueByAssetClassAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US" id="id_1168147_510142_1_1">Fair Value By Fair Value Hierarchy Level [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xml:lang="en-US" id="id_1168147_510142_2_1">Fair Value, Hierarchy [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="us-gaap_FairValueDisclosuresTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xml:lang="en-US" id="id_1168147_502694_1_1">Fair Value Disclosures [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueDisclosuresTextBlock_lbl" xml:lang="en-US" id="id_1168147_502694_2_1">Fair Value of Financial Instruments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresTextBlock" xlink:to="us-gaap_FairValueDisclosuresTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="us-gaap_FairValueInputsLevel2Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xml:lang="en-US" id="id_1168147_511009_1_1">Fair Value Inputs Level 2 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xml:lang="en-US" id="id_1168147_511009_2_1">Fair Value, Inputs, Level 2</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_512919_1_1">Fair Value Measurement Policy Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_512919_2_1">Fair Value Measurements</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:to="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US" id="id_1168147_501136_1_1">Fair Value Measurements Fair Value Hierarchy [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xml:lang="en-US" id="id_1168147_501136_2_1">Fair Value, Measurements, Fair Value Hierarchy [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember" xlink:label="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624797_3_1">February Twelve Twenty Zero Nine Series B One Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624797_1_1">February Twelve Twenty Zero Nine Series B One Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624797_2_1">February 12, 2009 Series B-1 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember" xlink:to="galt_FebruaryTwelveTwentyZeroNineSeriesBOneTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember" xlink:label="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624796_3_1">February Twenty Five Twenty Zero Eight Common Stock Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624796_1_1">February Twenty Five Twenty Zero Eight Common Stock Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624796_2_1">February 25, 2008 Common Stock Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember" xlink:to="galt_FebruaryTwentyFiveTwentyZeroEightCommonStockTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FinderAndFindersAgentsMember" xlink:label="galt_FinderAndFindersAgentsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FinderAndFindersAgentsMember_lbl" xml:lang="en-US" id="id_1168147_624055_3_1">Finder and Finder's Agents [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FinderAndFindersAgentsMember_lbl" xml:lang="en-US" id="id_1168147_624055_1_1">Finder And Finders Agents [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FinderAndFindersAgentsMember_lbl" xml:lang="en-US" id="id_1168147_624055_2_1">Finder and Finder's Agents</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FinderAndFindersAgentsMember" xlink:to="galt_FinderAndFindersAgentsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xml:lang="en-US" id="id_1168147_513029_1_1">Finite Lived Intangible Assets Accumulated Amortization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xml:lang="en-US" id="id_1168147_513029_2_1">Accumulated amortization of intangible assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xml:lang="en-US" id="id_1168147_510135_1_1">Finite Lived Intangible Assets Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xml:lang="en-US" id="id_1168147_510135_2_1">Gross intangible assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsGross" xlink:to="us-gaap_FiniteLivedIntangibleAssetsGross_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xml:lang="en-US" id="id_1168147_513345_1_1">Finite Lived Intangible Asset Useful Life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xml:lang="en-US" id="id_1168147_513345_2_1">Estimated useful lives of intangible assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:to="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FirstIssuanceMember" xlink:label="galt_FirstIssuanceMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FirstIssuanceMember_lbl" xml:lang="en-US" id="id_1168147_531496_3_1">First Issuance [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FirstIssuanceMember_lbl" xml:lang="en-US" id="id_1168147_531496_1_1">First Issuance [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FirstIssuanceMember_lbl" xml:lang="en-US" id="id_1168147_531496_2_1">First Issuance</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FirstIssuanceMember" xlink:to="galt_FirstIssuanceMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FirstPaymentMember" xlink:label="galt_FirstPaymentMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FirstPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538001_3_1">First Payment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FirstPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538001_1_1">First Payment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FirstPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538001_2_1">First Payment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FirstPaymentMember" xlink:to="galt_FirstPaymentMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_FormerChiefFinancialOfficerMember" xlink:label="galt_FormerChiefFinancialOfficerMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_FormerChiefFinancialOfficerMember_lbl" xml:lang="en-US" id="id_1168147_591663_3_1">Former Chief Financial Officer [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_FormerChiefFinancialOfficerMember_lbl" xml:lang="en-US" id="id_1168147_591663_1_1">Former Chief Financial Officer [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_FormerChiefFinancialOfficerMember_lbl" xml:lang="en-US" id="id_1168147_591663_2_1">Former Chief Financial Officer</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_FormerChiefFinancialOfficerMember" xlink:to="galt_FormerChiefFinancialOfficerMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="us-gaap_FurnitureAndFixturesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xml:lang="en-US" id="id_1168147_500372_1_1">Furniture And Fixtures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xml:lang="en-US" id="id_1168147_500372_2_1">Furniture and fixtures</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FurnitureAndFixturesMember" xlink:to="us-gaap_FurnitureAndFixturesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US" id="id_1168147_506093_1_1">General And Administrative Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US" id="id_1168147_506093_2_1">General and administrative</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xml:lang="en-US" id="id_1168147_510320_1_1">General And Administrative Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xml:lang="en-US" id="id_1168147_510320_2_1">General and Administrative</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpenseMember" xlink:to="us-gaap_GeneralAndAdministrativeExpenseMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:label="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_lbl" xml:lang="en-US" id="id_1168147_505233_1_1">Goodwill And Intangible Assets Intangible Assets Policy</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_lbl" xml:lang="en-US" id="id_1168147_505233_2_1">Intangible Assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy" xlink:to="us-gaap_GoodwillAndIntangibleAssetsIntangibleAssetsPolicy_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants" xlink:label="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xml:lang="en-US" id="id_1168147_526902_3_1">Gross Proceeds from Issuance of Common Stock and Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xml:lang="en-US" id="id_1168147_526902_1_1">Gross Proceeds From Issuance Of Common Stock And Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xml:lang="en-US" id="id_1168147_526902_2_1">Gross proceeds from issuance of stock and warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants" xlink:to="galt_GrossProceedsFromIssuanceOfCommonStockAndWarrants_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IncomeTaxesLineItems_lbl" xml:lang="en-US" id="id_1168147_518729_3_1">Income Taxes [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IncomeTaxesLineItems_lbl" xml:lang="en-US" id="id_1168147_518729_1_1">Income Taxes [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IncomeTaxesLineItems_lbl" xml:lang="en-US" id="id_1168147_518729_2_1">Income Taxes [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IncomeTaxesLineItems" xlink:to="galt_IncomeTaxesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IncomeTaxesTable" xlink:label="galt_IncomeTaxesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IncomeTaxesTable_lbl" xml:lang="en-US" id="id_1168147_541968_3_1">Income Taxes [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IncomeTaxesTable_lbl" xml:lang="en-US" id="id_1168147_541968_1_1">Income Taxes [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IncomeTaxesTable_lbl" xml:lang="en-US" id="id_1168147_541968_2_1">Income Taxes [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IncomeTaxesTable" xlink:to="galt_IncomeTaxesTable_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_508599_1_1">Income Tax Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_508599_2_1">Income Taxes</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCreditsResearch" xlink:label="us-gaap_IncomeTaxReconciliationTaxCreditsResearch"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxReconciliationTaxCreditsResearch_lbl" xml:lang="en-US" id="id_1168147_501559_2_1">Research and development credits</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US" id="id_1168147_501920_1_1">Increase Decrease In Accounts Payable And Accrued Liabilities</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_InstitutionalInvestorsMember_lbl" xml:lang="en-US" id="id_1168147_531324_1_1">Institutional Investors [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_InstitutionalInvestorsMember_lbl" xml:lang="en-US" id="id_1168147_531324_2_1">Institutional Investors</label>
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    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US" id="id_1168147_514855_8_1">Interest expense</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US" id="id_1168147_512118_1_1">Interest Paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaid_lbl" xml:lang="en-US" id="id_1168147_512118_2_1">SUPPLEMENTAL DISCLOSURE-Cash paid for interest</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/invest/2012/invest-2012-01-31.xsd#invest_InvestmentDomain" xlink:label="invest_InvestmentDomain"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="invest_InvestmentDomain_lbl" xml:lang="en-US" id="id_1168147_497903_2_1">Investment [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="invest_InvestmentDomain" xlink:to="invest_InvestmentDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:label="us-gaap_InvestmentIncomeInterest"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xml:lang="en-US" id="id_1168147_504284_2_1">Interest income</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeInterest" xlink:to="us-gaap_InvestmentIncomeInterest_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_InvestorRelationsFirmMember" xlink:label="galt_InvestorRelationsFirmMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_InvestorRelationsFirmMember_lbl" xml:lang="en-US" id="id_1168147_624048_3_1">Investor Relations Firm [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_InvestorRelationsFirmMember_lbl" xml:lang="en-US" id="id_1168147_624048_1_1">Investor Relations Firm [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_InvestorRelationsFirmMember_lbl" xml:lang="en-US" id="id_1168147_624048_2_1">Investor Relations Firm</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_InvestorRelationsFirmMember" xlink:to="galt_InvestorRelationsFirmMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_InvestorRelationsGroupIncMember" xlink:label="galt_InvestorRelationsGroupIncMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_InvestorRelationsGroupIncMember_lbl" xml:lang="en-US" id="id_1168147_551558_3_1">Investor Relations Group Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_InvestorRelationsGroupIncMember_lbl" xml:lang="en-US" id="id_1168147_551558_1_1">Investor Relations Group Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_InvestorRelationsGroupIncMember_lbl" xml:lang="en-US" id="id_1168147_551558_2_1">Investor Relations Group</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_InvestorRelationsGroupIncMember" xlink:to="galt_InvestorRelationsGroupIncMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodEightMember" xlink:label="galt_IssuanceDuringPeriodEightMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517224_3_1">Issuance During Period 8th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517224_1_1">Issuance During Period Eight [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517224_2_1">Issuance During Period 8th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodEightMember" xlink:to="galt_IssuanceDuringPeriodEightMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodElevenMember" xlink:label="galt_IssuanceDuringPeriodElevenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodElevenMember_lbl" xml:lang="en-US" id="id_1168147_517232_3_1">Issuance During Period 11th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodElevenMember_lbl" xml:lang="en-US" id="id_1168147_517232_1_1">Issuance During Period Eleven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodElevenMember_lbl" xml:lang="en-US" id="id_1168147_517232_2_1">Issuance During Period 11th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodElevenMember" xlink:to="galt_IssuanceDuringPeriodElevenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodFiveMember" xlink:label="galt_IssuanceDuringPeriodFiveMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517221_3_1">Issuance During Period 5th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517221_1_1">Issuance During Period Five [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517221_2_1">Issuance During Period 5th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodFiveMember" xlink:to="galt_IssuanceDuringPeriodFiveMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodFourMember" xlink:label="galt_IssuanceDuringPeriodFourMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_516860_3_1">Issuance During Period 4th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_516860_1_1">Issuance During Period Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_516860_2_1">Issuance During Period 4th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodFourMember" xlink:to="galt_IssuanceDuringPeriodFourMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodFourteenMember" xlink:label="galt_IssuanceDuringPeriodFourteenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodFourteenMember_lbl" xml:lang="en-US" id="id_1168147_517235_3_1">Issuance During Period 14th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodFourteenMember_lbl" xml:lang="en-US" id="id_1168147_517235_1_1">Issuance During Period Fourteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodFourteenMember_lbl" xml:lang="en-US" id="id_1168147_517235_2_1">Issuance During Period 14th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodFourteenMember" xlink:to="galt_IssuanceDuringPeriodFourteenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodNineMember" xlink:label="galt_IssuanceDuringPeriodNineMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodNineMember_lbl" xml:lang="en-US" id="id_1168147_517225_3_1">Issuance During Period 9th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodNineMember_lbl" xml:lang="en-US" id="id_1168147_517225_1_1">Issuance During Period Nine [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodNineMember_lbl" xml:lang="en-US" id="id_1168147_517225_2_1">Issuance During Period 9th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodNineMember" xlink:to="galt_IssuanceDuringPeriodNineMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodOneMember" xlink:label="galt_IssuanceDuringPeriodOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_516857_3_1">Issuance During Period 1st [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_516857_1_1">Issuance During Period One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_516857_2_1">Issuance During Period 1st</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodOneMember" xlink:to="galt_IssuanceDuringPeriodOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodSevenMember" xlink:label="galt_IssuanceDuringPeriodSevenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517223_3_1">Issuance During Period 7th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517223_1_1">Issuance During Period Seven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517223_2_1">Issuance During Period 7th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodSevenMember" xlink:to="galt_IssuanceDuringPeriodSevenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodSixMember" xlink:label="galt_IssuanceDuringPeriodSixMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517222_3_1">Issuance During Period 6th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517222_1_1">Issuance During Period Six [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517222_2_1">Issuance During Period 6th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodSixMember" xlink:to="galt_IssuanceDuringPeriodSixMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodTenMember" xlink:label="galt_IssuanceDuringPeriodTenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodTenMember_lbl" xml:lang="en-US" id="id_1168147_517226_3_1">Issuance During Period 10th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodTenMember_lbl" xml:lang="en-US" id="id_1168147_517226_1_1">Issuance During Period Ten [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodTenMember_lbl" xml:lang="en-US" id="id_1168147_517226_2_1">Issuance During Period 10th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodTenMember" xlink:to="galt_IssuanceDuringPeriodTenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodThreeMember" xlink:label="galt_IssuanceDuringPeriodThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_516859_3_1">Issuance During Period 3rd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_516859_1_1">Issuance During Period Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_516859_2_1">Issuance During Period 3rd</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodThreeMember" xlink:to="galt_IssuanceDuringPeriodThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodTwelveMember" xlink:label="galt_IssuanceDuringPeriodTwelveMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodTwelveMember_lbl" xml:lang="en-US" id="id_1168147_517233_3_1">Issuance During Period 12th [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodTwelveMember_lbl" xml:lang="en-US" id="id_1168147_517233_1_1">Issuance During Period Twelve [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodTwelveMember_lbl" xml:lang="en-US" id="id_1168147_517233_2_1">Issuance During Period 12th</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodTwelveMember" xlink:to="galt_IssuanceDuringPeriodTwelveMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceDuringPeriodTwoMember" xlink:label="galt_IssuanceDuringPeriodTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceDuringPeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_516858_3_1">Issuance During Period 2nd</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceDuringPeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_516858_1_1">Issuance During Period Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceDuringPeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_516858_2_1">Issuance During Period 2nd</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceDuringPeriodTwoMember" xlink:to="galt_IssuanceDuringPeriodTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfCommonStockAndWarrantsShares" xlink:label="galt_IssuanceOfCommonStockAndWarrantsShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfCommonStockAndWarrantsShares_lbl" xml:lang="en-US" id="id_1168147_528524_3_1">Issuance Of Common Stock And Warrants, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfCommonStockAndWarrantsShares_lbl" xml:lang="en-US" id="id_1168147_528524_1_1">Issuance Of Common Stock And Warrants Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfCommonStockAndWarrantsShares_lbl" xml:lang="en-US" id="id_1168147_528524_2_1">Issuance of common stock and warrants</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfCommonStockAndWarrantsValue" xlink:label="galt_IssuanceOfCommonStockAndWarrantsValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfCommonStockAndWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_520386_3_1">Value of issuance of common stock and warrants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfCommonStockAndWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_520386_1_1">Issuance Of Common Stock And Warrants Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfCommonStockAndWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_520386_2_1">Issuance of common stock and warrants, net of issuance costs of $1,597,000 in 2012 and $17,000 in 2001</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfCommonStockAndWarrantsValue" xlink:to="galt_IssuanceOfCommonStockAndWarrantsValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings" xlink:label="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings_lbl" xml:lang="en-US" id="id_1168147_524106_3_1">Issuance of equity warrants in connection with equity offerings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings_lbl" xml:lang="en-US" id="id_1168147_524106_1_1">Issuance Of Equity Warrants In Connection With Equity Offerings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings_lbl" xml:lang="en-US" id="id_1168147_524106_2_1">Issuance of equity warrants in connection with equity offerings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings_lbl" xml:lang="en-US" id="id_1168147_524106_12_1">Warrants issuance value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings" xlink:to="galt_IssuanceOfEquityWarrantsInConnectionWithEquityOfferings_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfRedeemablePreferredStockShares" xlink:label="galt_IssuanceOfRedeemablePreferredStockShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfRedeemablePreferredStockShares_lbl" xml:lang="en-US" id="id_1168147_528614_3_1">Issuance Of Redeemable Preferred Stock, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfRedeemablePreferredStockShares_lbl" xml:lang="en-US" id="id_1168147_528614_1_1">Issuance Of Redeemable Preferred Stock Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfRedeemablePreferredStockShares_lbl" xml:lang="en-US" id="id_1168147_528614_2_1">Issuance of redeemable convertible preferred stock (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfRedeemablePreferredStockShares" xlink:to="galt_IssuanceOfRedeemablePreferredStockShares_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfRedeemablePreferredStockValue" xlink:label="galt_IssuanceOfRedeemablePreferredStockValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfRedeemablePreferredStockValue_lbl" xml:lang="en-US" id="id_1168147_520792_3_1">Issuance Of Redeemable Preferred Stock Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfRedeemablePreferredStockValue_lbl" xml:lang="en-US" id="id_1168147_520792_1_1">Issuance Of Redeemable Preferred Stock Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfRedeemablePreferredStockValue_lbl" xml:lang="en-US" id="id_1168147_520792_2_1">Issuance of redeemable convertible preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfRedeemablePreferredStockValue" xlink:to="galt_IssuanceOfRedeemablePreferredStockValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfWarrantsPricePerShare" xlink:label="galt_IssuanceOfWarrantsPricePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfWarrantsPricePerShare_lbl" xml:lang="en-US" id="id_1168147_540014_3_1">Issuance Of Warrants Price Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfWarrantsPricePerShare_lbl" xml:lang="en-US" id="id_1168147_540014_1_1">Issuance Of Warrants Price Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfWarrantsPricePerShare_lbl" xml:lang="en-US" id="id_1168147_540014_2_1">Warrant issued price per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfWarrantsPricePerShare" xlink:to="galt_IssuanceOfWarrantsPricePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable" xlink:label="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable_lbl" xml:lang="en-US" id="id_1168147_524108_3_1">Issuance of warrants to induce conversion of notes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable_lbl" xml:lang="en-US" id="id_1168147_524108_1_1">Issuance Of Warrants To Induce Conversion Of Notes Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable_lbl" xml:lang="en-US" id="id_1168147_524108_2_1">Issuance of warrants to induce conversion of notes payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable" xlink:to="galt_IssuanceOfWarrantsToInduceConversionOfNotesPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_IssuanceOfWarrantsValue" xlink:label="galt_IssuanceOfWarrantsValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_IssuanceOfWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_524643_3_1">Issuance Of Warrants, Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_IssuanceOfWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_524643_1_1">Issuance Of Warrants Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_IssuanceOfWarrantsValue_lbl" xml:lang="en-US" id="id_1168147_524643_2_1">Value of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_IssuanceOfWarrantsValue" xlink:to="galt_IssuanceOfWarrantsValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember" xlink:label="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624808_3_1">January Twenty Nine Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624808_1_1">January Twenty Nine Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624808_2_1">January 29, 2010 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember" xlink:to="galt_JanuaryTwentyNineTwentyTenSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember" xlink:label="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624803_3_1">July Twenty Six Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624803_1_1">July Twenty Six Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624803_2_1">July 26, 2009 Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember" xlink:to="galt_JulyTwentySixTwentyZeroNineConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_JuneFifteenTwentyTenConsultantWarrantsMember" xlink:label="galt_JuneFifteenTwentyTenConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_JuneFifteenTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624813_3_1">June Fifteen Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_JuneFifteenTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624813_1_1">June Fifteen Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_JuneFifteenTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624813_2_1">June 15, 2010 Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_JuneFifteenTwentyTenConsultantWarrantsMember" xlink:to="galt_JuneFifteenTwentyTenConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember" xlink:label="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624802_3_1">June Thirty Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624802_1_1">June Thirty Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624802_2_1">June 30, 2009 Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember" xlink:to="galt_JuneThirtyTwentyZeroNineConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624799_3_1">June Thirty Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624799_1_1">June Thirty Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624799_2_1">June 30, 2009 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember" xlink:to="galt_JuneThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LawsuitDamageClaim" xlink:label="galt_LawsuitDamageClaim"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LawsuitDamageClaim_lbl" xml:lang="en-US" id="id_1168147_578254_3_1">Lawsuit Damage Claim</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LawsuitDamageClaim_lbl" xml:lang="en-US" id="id_1168147_578254_1_1">Lawsuit Damage Claim</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LawsuitDamageClaim_lbl" xml:lang="en-US" id="id_1168147_578254_2_1">Lawsuit payment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LawsuitDamageClaim" xlink:to="galt_LawsuitDamageClaim_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LeaseAgreementExpirationDate" xlink:label="galt_LeaseAgreementExpirationDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LeaseAgreementExpirationDate_lbl" xml:lang="en-US" id="id_1168147_662213_3_1">Lease Agreement Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LeaseAgreementExpirationDate_lbl" xml:lang="en-US" id="id_1168147_662213_1_1">Lease Agreement Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LeaseAgreementExpirationDate_lbl" xml:lang="en-US" id="id_1168147_662213_2_1">Lease expiration date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LeaseAgreementExpirationDate" xlink:to="galt_LeaseAgreementExpirationDate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="us-gaap_LeaseAndRentalExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseAndRentalExpense_lbl" xml:lang="en-US" id="id_1168147_513419_1_1">Lease And Rental Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LeaseAndRentalExpense_lbl" xml:lang="en-US" id="id_1168147_513419_2_1">Operating lease</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseAndRentalExpense" xlink:to="us-gaap_LeaseAndRentalExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LeaseDeposits" xlink:label="galt_LeaseDeposits"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LeaseDeposits_lbl" xml:lang="en-US" id="id_1168147_626930_3_1">Lease Deposits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LeaseDeposits_lbl" xml:lang="en-US" id="id_1168147_626930_1_1">Lease Deposits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LeaseDeposits_lbl" xml:lang="en-US" id="id_1168147_626930_2_1">Operating lease agreements, Security Deposit</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LeaseDeposits" xlink:to="galt_LeaseDeposits_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LeaseExtensionPeriod" xlink:label="galt_LeaseExtensionPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LeaseExtensionPeriod_lbl" xml:lang="en-US" id="id_1168147_530126_3_1">Lease Extension Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LeaseExtensionPeriod_lbl" xml:lang="en-US" id="id_1168147_530126_1_1">Lease Extension Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LeaseExtensionPeriod_lbl" xml:lang="en-US" id="id_1168147_530126_2_1">Lease extension period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LeaseExtensionPeriod" xlink:to="galt_LeaseExtensionPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="us-gaap_LeaseholdImprovementsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xml:lang="en-US" id="id_1168147_498304_1_1">Leasehold Improvements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LeaseholdImprovementsMember_lbl" xml:lang="en-US" id="id_1168147_498304_2_1">Leasehold improvements</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsMember" xlink:to="us-gaap_LeaseholdImprovementsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US" id="id_1168147_497730_1_1">Legal Entity [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_LegalEntityAxis_lbl" xml:lang="en-US" id="id_1168147_497730_2_1">Legal Entity [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US" id="id_1168147_506022_1_1">Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US" id="id_1168147_506022_6_1">Total liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_508780_1_1">Liabilities And Stockholders Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_508780_2_1">Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_501524_1_1">Liabilities And Stockholders Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_501524_2_1">LIABILITIES, REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY (DEFICIT)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_511950_1_1">Liabilities Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_511950_6_1">Total current liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="id_1168147_510138_1_1">Liabilities Current [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US" id="id_1168147_510138_2_1">Current liabilities:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LocationAxis" xlink:label="galt_LocationAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LocationAxis_lbl" xml:lang="en-US" id="id_1168147_530649_3_1">Location [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LocationAxis_lbl" xml:lang="en-US" id="id_1168147_530649_1_1">Location [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LocationAxis_lbl" xml:lang="en-US" id="id_1168147_530649_2_1">Location [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LocationAxis" xlink:to="galt_LocationAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LocationsDomain" xlink:label="galt_LocationsDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LocationsDomain_lbl" xml:lang="en-US" id="id_1168147_535824_3_1">Locations [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LocationsDomain_lbl" xml:lang="en-US" id="id_1168147_535824_1_1">Locations [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LocationsDomain_lbl" xml:lang="en-US" id="id_1168147_535824_2_1">Locations [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LocationsDomain" xlink:to="galt_LocationsDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_LongTermOperatingLeaseExpirationDate" xlink:label="galt_LongTermOperatingLeaseExpirationDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_LongTermOperatingLeaseExpirationDate_lbl" xml:lang="en-US" id="id_1168147_629350_3_1">Long Term Operating Lease Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_LongTermOperatingLeaseExpirationDate_lbl" xml:lang="en-US" id="id_1168147_629350_1_1">Long Term Operating Lease Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_LongTermOperatingLeaseExpirationDate_lbl" xml:lang="en-US" id="id_1168147_629350_2_1">Operating lease agreements, Expiry date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_LongTermOperatingLeaseExpirationDate" xlink:to="galt_LongTermOperatingLeaseExpirationDate_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MarchEightTwentyTenSeriesBTwoTransactionMember" xlink:label="galt_MarchEightTwentyTenSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MarchEightTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624809_3_1">March Eight Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MarchEightTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624809_1_1">March Eight Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MarchEightTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624809_2_1">March 8, 2010 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MarchEightTwentyTenSeriesBTwoTransactionMember" xlink:to="galt_MarchEightTwentyTenSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember" xlink:label="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678629_3_1">March Twenty Eight Twenty Twelve Offering Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678629_1_1">March Twenty Eight Twenty Twelve Offering Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678629_2_1">March Twenty Eight Twenty Twelve Offering Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember" xlink:to="galt_MarchTwentyEightTwentyTwelveOfferingWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MaximumDevelopmentBudget" xlink:label="galt_MaximumDevelopmentBudget"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MaximumDevelopmentBudget_lbl" xml:lang="en-US" id="id_1168147_661885_3_1">Maximum Development Budget</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MaximumDevelopmentBudget_lbl" xml:lang="en-US" id="id_1168147_661885_1_1">Maximum Development Budget</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MaximumDevelopmentBudget_lbl" xml:lang="en-US" id="id_1168147_661885_2_1">Estimated budget for work order</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MaximumDevelopmentBudget" xlink:to="galt_MaximumDevelopmentBudget_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MaximumMember" xlink:label="us-gaap_MaximumMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MaximumMember_lbl" xml:lang="en-US" id="id_1168147_514053_1_1">Maximum [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MaximumMember_lbl" xml:lang="en-US" id="id_1168147_514053_2_1">Maximum</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MaximumMember" xlink:to="us-gaap_MaximumMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MayOneTwentyZeroNineConsultantWarrantsMember" xlink:label="galt_MayOneTwentyZeroNineConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MayOneTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624801_3_1">May One Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MayOneTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624801_1_1">May One Twenty Zero Nine Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MayOneTwentyZeroNineConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624801_2_1">May 1, 2009 Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MayOneTwentyZeroNineConsultantWarrantsMember" xlink:to="galt_MayOneTwentyZeroNineConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MayTenTwentyTenSeriesBTwoTransactionMember" xlink:label="galt_MayTenTwentyTenSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MayTenTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624811_3_1">May Ten Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MayTenTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624811_1_1">May Ten Twenty Ten Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MayTenTwentyTenSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624811_2_1">May 10, 2010 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MayTenTwentyTenSeriesBTwoTransactionMember" xlink:to="galt_MayTenTwentyTenSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624798_3_1">May Thirteen Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624798_1_1">May Thirteen Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624798_2_1">May 13, 2009 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember" xlink:to="galt_MayThirteenTwentyZeroNineSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MayTwentyFiveTwentyTenConsultantWarrantsMember" xlink:label="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624812_3_1">May Twenty Five Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624812_1_1">May Twenty Five Twenty Ten Consultant Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_624812_2_1">May Twenty Five Twenty Ten Consultant Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember" xlink:to="galt_MayTwentyFiveTwentyTenConsultantWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MemberOfScientificAdvisoryBoardMember" xlink:label="galt_MemberOfScientificAdvisoryBoardMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610121_3_1">Member of Scientific Advisory Board [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610121_1_1">Member Of Scientific Advisory Board [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MemberOfScientificAdvisoryBoardMember_lbl" xml:lang="en-US" id="id_1168147_610121_2_1">Member of Scientific Advisory Board</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MemberOfScientificAdvisoryBoardMember" xlink:to="galt_MemberOfScientificAdvisoryBoardMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MinimumCompanyMarketCapitalization" xlink:label="galt_MinimumCompanyMarketCapitalization"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MinimumCompanyMarketCapitalization_lbl" xml:lang="en-US" id="id_1168147_520820_3_1">Minimum Company Market Capitalization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MinimumCompanyMarketCapitalization_lbl" xml:lang="en-US" id="id_1168147_520820_1_1">Minimum Company Market Capitalization</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MinimumCompanyMarketCapitalization_lbl" xml:lang="en-US" id="id_1168147_520820_2_1">Market capitalization</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MinimumCompanyMarketCapitalization" xlink:to="galt_MinimumCompanyMarketCapitalization_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MinimumMember" xlink:label="us-gaap_MinimumMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MinimumMember_lbl" xml:lang="en-US" id="id_1168147_513639_1_1">Minimum [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MinimumMember_lbl" xml:lang="en-US" id="id_1168147_513639_2_1">Minimum</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinimumMember" xlink:to="us-gaap_MinimumMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_MoneyMarketFundsMember" xlink:label="us-gaap_MoneyMarketFundsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US" id="id_1168147_503498_1_1">Money Market Funds [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MoneyMarketFundsMember_lbl" xml:lang="en-US" id="id_1168147_503498_2_1">Money market funds</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MoneyMarketFundsMember" xlink:to="us-gaap_MoneyMarketFundsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_MonteCarloOptionPricingModelMember" xlink:label="galt_MonteCarloOptionPricingModelMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_MonteCarloOptionPricingModelMember_lbl" xml:lang="en-US" id="id_1168147_580425_3_1">Monte Carlo Option Pricing Model [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_MonteCarloOptionPricingModelMember_lbl" xml:lang="en-US" id="id_1168147_580425_1_1">Monte Carlo Option Pricing Model [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_MonteCarloOptionPricingModelMember_lbl" xml:lang="en-US" id="id_1168147_580425_2_1">Monte Carlo Option Pricing Model</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_MonteCarloOptionPricingModelMember" xlink:to="galt_MonteCarloOptionPricingModelMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US" id="id_1168147_508099_1_1">Net Cash Provided By Used In Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US" id="id_1168147_508099_2_1">Net cash provided by financing activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_503174_1_1">Net Cash Provided By Used In Financing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_503174_2_1">CASH FLOWS FROM FINANCING ACTIVITIES:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US" id="id_1168147_504277_1_1">Net Cash Provided By Used In Investing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US" id="id_1168147_504277_6_1">Net cash provided by (used in) investing activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_501589_1_1">Net Cash Provided By Used In Investing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_501589_2_1">CASH FLOWS FROM INVESTING ACTIVITIES:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US" id="id_1168147_504077_1_1">Net Cash Provided By Used In Operating Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US" id="id_1168147_504077_2_1">Net cash used in operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US" id="id_1168147_504077_6_1">Net cash used in operating activities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_505595_1_1">Net Cash Provided By Used In Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" id="id_1168147_505595_2_1">CASH FLOWS FROM OPERATING ACTIVITIES:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_1168147_513055_1_1">Net Income Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_1168147_513055_2_1">Net loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US" id="id_1168147_513055_6_1">Net loss</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_1168147_513871_1_1">Net Income Loss Available To Common Stockholders Basic</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_1168147_513871_2_1">Net loss applicable to common stockholders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_1168147_513871_6_1">Net loss applicable to common stockholders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl" xml:lang="en-US" id="id_1168147_513871_12_1">Net losses applicable to common stockholders</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NonCashMember" xlink:label="galt_NonCashMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NonCashMember_lbl" xml:lang="en-US" id="id_1168147_534240_3_1">Non Cash [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NonCashMember_lbl" xml:lang="en-US" id="id_1168147_534240_1_1">Non Cash [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NonCashMember_lbl" xml:lang="en-US" id="id_1168147_534240_2_1">Cashless</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NonCashMember" xlink:to="galt_NonCashMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember" xlink:label="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember_lbl" xml:lang="en-US" id="id_1168147_610120_3_1">Non Employee Board Member and Former Member of Audit Committee [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember_lbl" xml:lang="en-US" id="id_1168147_610120_1_1">Non Employee Board Member And Former Member Of Audit Committee [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember_lbl" xml:lang="en-US" id="id_1168147_610120_2_1">Non Employee Board Member and Former Member of Audit Committee</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember" xlink:to="galt_NonEmployeeBoardMemberAndFormerMemberOfAuditCommitteeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember" xlink:label="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_610127_3_1">Non Employee Director Stock Options Plan, Twenty Zero Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_610127_1_1">Non Employee Director Stock Options Plan Twenty Zero Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_610127_2_1">Non Employee Director Stock Options Plan, Twenty Zero Three</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember" xlink:to="galt_NonEmployeeDirectorStockOptionsPlanTwentyZeroThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="us-gaap_NonoperatingIncomeExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xml:lang="en-US" id="id_1168147_513079_1_1">Nonoperating Income Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xml:lang="en-US" id="id_1168147_513079_6_1">Total other income (expense)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpense" xlink:to="us-gaap_NonoperatingIncomeExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xml:lang="en-US" id="id_1168147_504667_1_1">Nonoperating Income Expense [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xml:lang="en-US" id="id_1168147_504667_2_1">Other income (expense):</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_NonoperatingIncomeExpenseAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NonQualifiedOptionsPlansMember" xlink:label="galt_NonQualifiedOptionsPlansMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NonQualifiedOptionsPlansMember_lbl" xml:lang="en-US" id="id_1168147_585047_3_1">Non Qualified Options Plans [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NonQualifiedOptionsPlansMember_lbl" xml:lang="en-US" id="id_1168147_585047_1_1">Non Qualified Options Plans [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NonQualifiedOptionsPlansMember_lbl" xml:lang="en-US" id="id_1168147_585047_2_1">Non Qualified Options Plans</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NonQualifiedOptionsPlansMember" xlink:to="galt_NonQualifiedOptionsPlansMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NorcrossMember" xlink:label="galt_NorcrossMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NorcrossMember_lbl" xml:lang="en-US" id="id_1168147_607894_3_1">Norcross [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NorcrossMember_lbl" xml:lang="en-US" id="id_1168147_607894_1_1">Norcross [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NorcrossMember_lbl" xml:lang="en-US" id="id_1168147_607894_2_1">Norcross</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NorcrossMember" xlink:to="galt_NorcrossMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NotesPayableMember" xlink:label="galt_NotesPayableMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NotesPayableMember_lbl" xml:lang="en-US" id="id_1168147_532491_3_1">Notes Payable [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NotesPayableMember_lbl" xml:lang="en-US" id="id_1168147_532491_1_1">Notes Payable [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NotesPayableMember_lbl" xml:lang="en-US" id="id_1168147_532491_2_1">Notes Payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NotesPayableMember" xlink:to="galt_NotesPayableMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NoticePeriod" xlink:label="galt_NoticePeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NoticePeriod_lbl" xml:lang="en-US" id="id_1168147_620883_3_1">Notice Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NoticePeriod_lbl" xml:lang="en-US" id="id_1168147_620883_1_1">Notice Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NoticePeriod_lbl" xml:lang="en-US" id="id_1168147_620883_2_1">Notice period for conversion of preferred stock at the option of the company</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NoticePeriod" xlink:to="galt_NoticePeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NoticePeriodForTerminationOfAgreement" xlink:label="galt_NoticePeriodForTerminationOfAgreement"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NoticePeriodForTerminationOfAgreement_lbl" xml:lang="en-US" id="id_1168147_656147_3_1">Notice Period For Termination Of Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NoticePeriodForTerminationOfAgreement_lbl" xml:lang="en-US" id="id_1168147_656147_1_1">Notice Period For Termination Of Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NoticePeriodForTerminationOfAgreement_lbl" xml:lang="en-US" id="id_1168147_656147_2_1">Agreement termination notice period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NoticePeriodForTerminationOfAgreement" xlink:to="galt_NoticePeriodForTerminationOfAgreement_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NoticePeriodToCureBreachOfAgreement" xlink:label="galt_NoticePeriodToCureBreachOfAgreement"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NoticePeriodToCureBreachOfAgreement_lbl" xml:lang="en-US" id="id_1168147_599545_3_1">Notice Period To Cure Breach Of Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NoticePeriodToCureBreachOfAgreement_lbl" xml:lang="en-US" id="id_1168147_599545_1_1">Notice Period To Cure Breach Of Agreement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NoticePeriodToCureBreachOfAgreement_lbl" xml:lang="en-US" id="id_1168147_599545_2_1">Breach of contract termination notice period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NoticePeriodToCureBreachOfAgreement" xlink:to="galt_NoticePeriodToCureBreachOfAgreement_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624806_3_1">November Four Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624806_1_1">November Four Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624806_2_1">November 4, 2009 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember" xlink:to="galt_NovemberFourTwentyZeroNineSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfCompensationPlans" xlink:label="galt_NumberOfCompensationPlans"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfCompensationPlans_lbl" xml:lang="en-US" id="id_1168147_529471_3_1">Number Of Compensation Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfCompensationPlans_lbl" xml:lang="en-US" id="id_1168147_529471_1_1">Number Of Compensation Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfCompensationPlans_lbl" xml:lang="en-US" id="id_1168147_529471_2_1">Number of share based compensation plans</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfCompensationPlans" xlink:to="galt_NumberOfCompensationPlans_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfConsecutiveTradingDays" xlink:label="galt_NumberOfConsecutiveTradingDays"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_530140_3_1">Number of Consecutive Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_530140_1_1">Number Of Consecutive Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_530140_2_1">Number of consecutive trading days prior to dividend payment date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfConsecutiveTradingDays" xlink:to="galt_NumberOfConsecutiveTradingDays_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock" xlink:label="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_650193_3_1">Number of Consecutive Trading Days for Conversion of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_650193_1_1">Number Of Consecutive Trading Days For Conversion Of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_650193_2_1">Number of consecutive trading days for conversion of preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock" xlink:to="galt_NumberOfConsecutiveTradingDaysForConversionOfPreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfDaysForRedemptions" xlink:label="galt_NumberOfDaysForRedemptions"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfDaysForRedemptions_lbl" xml:lang="en-US" id="id_1168147_631151_3_1">Number Of Days For Redemptions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfDaysForRedemptions_lbl" xml:lang="en-US" id="id_1168147_631151_1_1">Number Of Days For Redemptions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfDaysForRedemptions_lbl" xml:lang="en-US" id="id_1168147_631151_2_1">Number of trading days ending immediately prior to the date of redemption</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfDaysForRedemptions" xlink:to="galt_NumberOfDaysForRedemptions_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfNewDirectorsElected" xlink:label="galt_NumberOfNewDirectorsElected"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfNewDirectorsElected_lbl" xml:lang="en-US" id="id_1168147_542193_3_1">Number of New Directors Elected</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfNewDirectorsElected_lbl" xml:lang="en-US" id="id_1168147_542193_1_1">Number Of New Directors Elected</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfNewDirectorsElected_lbl" xml:lang="en-US" id="id_1168147_542193_2_1">Number of board of directors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfNewDirectorsElected" xlink:to="galt_NumberOfNewDirectorsElected_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfSharesInEachUnit" xlink:label="galt_NumberOfSharesInEachUnit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528891_3_1">Number Of Shares in Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528891_1_1">Number Of Shares In Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528891_2_1">Share of Series A Preferred in each unit issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfSharesInEachUnit" xlink:to="galt_NumberOfSharesInEachUnit_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfSharesOfCommonStockInEachUnit" xlink:label="galt_NumberOfSharesOfCommonStockInEachUnit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfSharesOfCommonStockInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545127_3_1">Number of Shares of Common Stock in Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfSharesOfCommonStockInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545127_1_1">Number Of Shares Of Common Stock In Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfSharesOfCommonStockInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545127_2_1">Number of common stock in each units issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfSharesOfCommonStockInEachUnit" xlink:to="galt_NumberOfSharesOfCommonStockInEachUnit_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfTradingDays" xlink:label="galt_NumberOfTradingDays"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfTradingDays_lbl" xml:lang="en-US" id="id_1168147_530139_3_1">Number of Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfTradingDays_lbl" xml:lang="en-US" id="id_1168147_530139_1_1">Number Of Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfTradingDays_lbl" xml:lang="en-US" id="id_1168147_530139_2_1">Number of consecutive trading days</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfTradingDays" xlink:to="galt_NumberOfTradingDays_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfWarrantSharesInEachUnit" xlink:label="galt_NumberOfWarrantSharesInEachUnit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfWarrantSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545128_3_1">Number of Warrant Shares in Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfWarrantSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545128_1_1">Number Of Warrant Shares In Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfWarrantSharesInEachUnit_lbl" xml:lang="en-US" id="id_1168147_545128_2_1">Number of warrant in each units issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfWarrantSharesInEachUnit" xlink:to="galt_NumberOfWarrantSharesInEachUnit_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_NumberOfWarrantsInEachUnit" xlink:label="galt_NumberOfWarrantsInEachUnit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_NumberOfWarrantsInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528892_3_1">Number of Warrants in Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_NumberOfWarrantsInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528892_1_1">Number Of Warrants In Each Unit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_NumberOfWarrantsInEachUnit_lbl" xml:lang="en-US" id="id_1168147_528892_2_1">Number of warrant to purchase one share of common stock in each unit issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_NumberOfWarrantsInEachUnit" xlink:to="galt_NumberOfWarrantsInEachUnit_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OfferingCostsPayable" xlink:label="galt_OfferingCostsPayable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OfferingCostsPayable_lbl" xml:lang="en-US" id="id_1168147_607959_3_1">Offering Costs Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OfferingCostsPayable_lbl" xml:lang="en-US" id="id_1168147_607959_1_1">Offering Costs Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OfferingCostsPayable_lbl" xml:lang="en-US" id="id_1168147_607959_2_1">Offering Cost payable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OfferingCostsPayable" xlink:to="galt_OfferingCostsPayable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OpenOptionContractsSharePurchaseMaximumPeriod" xlink:label="galt_OpenOptionContractsSharePurchaseMaximumPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OpenOptionContractsSharePurchaseMaximumPeriod_lbl" xml:lang="en-US" id="id_1168147_529967_3_1">Open Option Contracts Share Purchase Maximum Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OpenOptionContractsSharePurchaseMaximumPeriod_lbl" xml:lang="en-US" id="id_1168147_529967_1_1">Open Option Contracts Share Purchase Maximum Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OpenOptionContractsSharePurchaseMaximumPeriod_lbl" xml:lang="en-US" id="id_1168147_529967_2_1">Period of option to purchase additional units to cover over-allotments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OpenOptionContractsSharePurchaseMaximumPeriod" xlink:to="galt_OpenOptionContractsSharePurchaseMaximumPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="us-gaap_OperatingExpenses"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US" id="id_1168147_509627_1_1">Operating Expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US" id="id_1168147_509627_6_1">Total operating expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="us-gaap_OperatingExpensesAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US" id="id_1168147_509338_1_1">Operating Expenses [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US" id="id_1168147_509338_2_1">Operating expenses:</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US" id="id_1168147_498863_1_1">Operating Income Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US" id="id_1168147_498863_6_1">Total operating loss</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLeasedAssetsLineItems" xlink:label="us-gaap_OperatingLeasedAssetsLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasedAssetsLineItems_lbl" xml:lang="en-US" id="id_1168147_511793_1_1">Operating Leased Assets [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasedAssetsLineItems_lbl" xml:lang="en-US" id="id_1168147_511793_2_1">Operating Leased Assets [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasedAssetsLineItems" xlink:to="us-gaap_OperatingLeasedAssetsLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OperatingLeaseExpirationPeriod" xlink:label="galt_OperatingLeaseExpirationPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OperatingLeaseExpirationPeriod_lbl" xml:lang="en-US" id="id_1168147_530043_3_1">Operating Lease Expiration Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OperatingLeaseExpirationPeriod_lbl" xml:lang="en-US" id="id_1168147_530043_1_1">Operating Lease Expiration Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OperatingLeaseExpirationPeriod_lbl" xml:lang="en-US" id="id_1168147_530043_2_1">Operating lease agreements, period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OperatingLeaseExpirationPeriod" xlink:to="galt_OperatingLeaseExpirationPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OperatingLeaseMaturityPeriod" xlink:label="galt_OperatingLeaseMaturityPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OperatingLeaseMaturityPeriod_lbl" xml:lang="en-US" id="id_1168147_617523_3_1">Operating Lease Maturity Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OperatingLeaseMaturityPeriod_lbl" xml:lang="en-US" id="id_1168147_617523_1_1">Operating Lease Maturity Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OperatingLeaseMaturityPeriod_lbl" xml:lang="en-US" id="id_1168147_617523_2_1">Operating lease period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OperatingLeaseMaturityPeriod" xlink:to="galt_OperatingLeaseMaturityPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OperatingLeasesAnnualRent" xlink:label="galt_OperatingLeasesAnnualRent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OperatingLeasesAnnualRent_lbl" xml:lang="en-US" id="id_1168147_543654_3_1">Operating Leases, Annual Rent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OperatingLeasesAnnualRent_lbl" xml:lang="en-US" id="id_1168147_543654_1_1">Operating Leases Annual Rent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OperatingLeasesAnnualRent_lbl" xml:lang="en-US" id="id_1168147_543654_2_1">Operating lease agreements, rent</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OperatingLeasesAnnualRent" xlink:to="galt_OperatingLeasesAnnualRent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xml:lang="en-US" id="id_1168147_513818_1_1">Operating Leases Future Minimum Payments Due</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xml:lang="en-US" id="id_1168147_513818_2_1">Total lease payments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl" xml:lang="en-US" id="id_1168147_498263_1_1">Operating Leases Future Minimum Payments Due Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl" xml:lang="en-US" id="id_1168147_498263_2_1">2013</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xml:lang="en-US" id="id_1168147_505123_1_1">Operating Leases Future Minimum Payments Due In Two Years</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xml:lang="en-US" id="id_1168147_505123_2_1">2014</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OperatingLeasesMonthlyBaseRentExpense" xlink:label="galt_OperatingLeasesMonthlyBaseRentExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OperatingLeasesMonthlyBaseRentExpense_lbl" xml:lang="en-US" id="id_1168147_578674_3_1">Operating Leases Monthly Base Rent Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OperatingLeasesMonthlyBaseRentExpense_lbl" xml:lang="en-US" id="id_1168147_578674_1_1">Operating Leases Monthly Base Rent Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OperatingLeasesMonthlyBaseRentExpense_lbl" xml:lang="en-US" id="id_1168147_578674_2_1">Base rent</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OperatingLeasesMonthlyBaseRentExpense" xlink:to="galt_OperatingLeasesMonthlyBaseRentExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock" xlink:label="us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_497947_1_1">Operating Leases Of Lessee Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_497947_2_1">Future Minimum Payments of Operating Lease</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock" xlink:to="us-gaap_OperatingLeasesOfLesseeDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="us-gaap_OperatingLossCarryforwards"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xml:lang="en-US" id="id_1168147_508515_1_1">Operating Loss Carryforwards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xml:lang="en-US" id="id_1168147_508515_2_1">Net operating loss carryforwards</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwards" xlink:to="us-gaap_OperatingLossCarryforwards_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OperatingLossCarryforwardsExpirationYear" xlink:label="galt_OperatingLossCarryforwardsExpirationYear"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OperatingLossCarryforwardsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_529358_3_1">Operating Loss Carryforwards, Expiration Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OperatingLossCarryforwardsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_529358_1_1">Operating Loss Carryforwards Expiration Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OperatingLossCarryforwardsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_529358_2_1">Operating loss carryforwards, expiration year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OperatingLossCarryforwardsExpirationYear" xlink:to="galt_OperatingLossCarryforwardsExpirationYear_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember" xlink:label="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_624046_3_1">Options Vested on December Thirty One Twenty Zero Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_624046_1_1">Options Vested On December Thirty One Twenty Zero Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember_lbl" xml:lang="en-US" id="id_1168147_624046_2_1">Options Vested on December Thirty One Twenty Zero Three</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember" xlink:to="galt_OptionsVestedOnDecemberThirtyOneTwentyZeroThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember" xlink:label="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember_lbl" xml:lang="en-US" id="id_1168147_624047_3_1">Options Vested on January and February Twenty Zero Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember_lbl" xml:lang="en-US" id="id_1168147_624047_1_1">Options Vested On January And February Twenty Zero Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember_lbl" xml:lang="en-US" id="id_1168147_624047_2_1">Options Vested on January and February Twenty Zero Four</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember" xlink:to="galt_OptionsVestedOnJanuaryAndFebruaryTwentyZeroFourMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_OrganizationalAndSeparationRelatedCharges" xlink:label="galt_OrganizationalAndSeparationRelatedCharges"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_OrganizationalAndSeparationRelatedCharges_lbl" xml:lang="en-US" id="id_1168147_616354_3_1">Organizational and Separation Related Charges</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_OrganizationalAndSeparationRelatedCharges_lbl" xml:lang="en-US" id="id_1168147_616354_1_1">Organizational And Separation Related Charges</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_OrganizationalAndSeparationRelatedCharges_lbl" xml:lang="en-US" id="id_1168147_616354_2_1">Separation based payments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_OrganizationalAndSeparationRelatedCharges" xlink:to="galt_OrganizationalAndSeparationRelatedCharges_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_502085_1_1">Other Accrued Liabilities Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent_lbl" xml:lang="en-US" id="id_1168147_502085_2_1">Other</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="us-gaap_OtherAccruedLiabilitiesCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xml:lang="en-US" id="id_1168147_506871_1_1">Other Liabilities Noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xml:lang="en-US" id="id_1168147_506871_2_1">Other long-term liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="us-gaap_OtherNonoperatingIncome"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNonoperatingIncome_lbl" xml:lang="en-US" id="id_1168147_507349_1_1">Other Nonoperating Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherNonoperatingIncome_lbl" xml:lang="en-US" id="id_1168147_507349_2_1">Federal grants award</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherNonoperatingIncome_lbl" xml:lang="en-US" id="id_1168147_507349_12_1">Other income</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncome" xlink:to="us-gaap_OtherNonoperatingIncome_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaidInKindInterest" xlink:label="us-gaap_PaidInKindInterest"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaidInKindInterest_lbl" xml:lang="en-US" id="id_1168147_509855_1_1">Paid In Kind Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PaidInKindInterest_lbl" xml:lang="en-US" id="id_1168147_509855_2_1">Non-cash interest expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaidInKindInterest" xlink:to="us-gaap_PaidInKindInterest_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_510719_1_1">Payments Of Stock Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PaymentsOfStockIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_510719_2_1">Stock issuance costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsOfStockIssuanceCosts" xlink:to="us-gaap_PaymentsOfStockIssuanceCosts_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets_lbl" xml:lang="en-US" id="id_1168147_502002_1_1">Payments To Acquire Productive Assets</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquireProductiveAssets_lbl" xml:lang="en-US" id="id_1168147_502002_8_1">Increase in patents costs and other assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireProductiveAssets" xlink:to="us-gaap_PaymentsToAcquireProductiveAssets_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_1168147_505828_1_1">Payments To Acquire Property Plant And Equipment</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US" id="id_1168147_505828_8_1">Purchases of property and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PercentageOfReturnOnInvestment" xlink:label="galt_PercentageOfReturnOnInvestment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PercentageOfReturnOnInvestment_lbl" xml:lang="en-US" id="id_1168147_604903_3_1">Percentage of Return on Investment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PercentageOfReturnOnInvestment_lbl" xml:lang="en-US" id="id_1168147_604903_1_1">Percentage Of Return On Investment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PercentageOfReturnOnInvestment_lbl" xml:lang="en-US" id="id_1168147_604903_2_1">ROI Percentage</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PercentageOfReturnOnInvestment" xlink:to="galt_PercentageOfReturnOnInvestment_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate" xlink:label="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate_lbl" xml:lang="en-US" id="id_1168147_544052_3_1">Percentage of Weighted Average Stock Price for Dividends, Prior to Payment Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate_lbl" xml:lang="en-US" id="id_1168147_544052_1_1">Percentage Of Weighted Average Stock Price For Dividends Prior To Payment Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate_lbl" xml:lang="en-US" id="id_1168147_544052_2_1">Dividend, percentage of value weighted average share price</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate" xlink:to="galt_PercentageOfWeightedAverageStockPriceForDividendsPriorToPaymentDate_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodAxis" xlink:label="galt_PeriodAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodAxis_lbl" xml:lang="en-US" id="id_1168147_530598_3_1">Period [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodAxis_lbl" xml:lang="en-US" id="id_1168147_530598_1_1">Period [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodAxis_lbl" xml:lang="en-US" id="id_1168147_530598_2_1">Period [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodAxis" xlink:to="galt_PeriodAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodDomain" xlink:label="galt_PeriodDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodDomain_lbl" xml:lang="en-US" id="id_1168147_533947_3_1">Period [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodDomain_lbl" xml:lang="en-US" id="id_1168147_533947_1_1">Period [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodDomain_lbl" xml:lang="en-US" id="id_1168147_533947_2_1">Period [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodDomain" xlink:to="galt_PeriodDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodEightMember" xlink:label="galt_PeriodEightMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517742_3_1">Period 8 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517742_1_1">Period Eight [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodEightMember_lbl" xml:lang="en-US" id="id_1168147_517742_2_1">Period 8</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodEightMember" xlink:to="galt_PeriodEightMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodFiveMember" xlink:label="galt_PeriodFiveMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517068_3_1">Period 5 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517068_1_1">Period Five [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodFiveMember_lbl" xml:lang="en-US" id="id_1168147_517068_2_1">Period 5</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodFiveMember" xlink:to="galt_PeriodFiveMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodFourMember" xlink:label="galt_PeriodFourMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_517069_3_1">Period 4 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_517069_1_1">Period Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodFourMember_lbl" xml:lang="en-US" id="id_1168147_517069_2_1">Period 4</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodFourMember" xlink:to="galt_PeriodFourMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodOneMember" xlink:label="galt_PeriodOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_517065_3_1">Period 1 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_517065_1_1">Period One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodOneMember_lbl" xml:lang="en-US" id="id_1168147_517065_2_1">Period 1</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodOneMember" xlink:to="galt_PeriodOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodSevenMember" xlink:label="galt_PeriodSevenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517741_3_1">Period 7 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517741_1_1">Period Seven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodSevenMember_lbl" xml:lang="en-US" id="id_1168147_517741_2_1">Period 7</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodSevenMember" xlink:to="galt_PeriodSevenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodSixMember" xlink:label="galt_PeriodSixMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517067_3_1">Period 6 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517067_1_1">Period Six [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodSixMember_lbl" xml:lang="en-US" id="id_1168147_517067_2_1">Period 6</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodSixMember" xlink:to="galt_PeriodSixMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodThreeMember" xlink:label="galt_PeriodThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_517070_3_1">Period 3 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_517070_1_1">Period Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodThreeMember_lbl" xml:lang="en-US" id="id_1168147_517070_2_1">Period 3</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodThreeMember" xlink:to="galt_PeriodThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PeriodTwoMember" xlink:label="galt_PeriodTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_517066_3_1">Period 2 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_517066_1_1">Period Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PeriodTwoMember_lbl" xml:lang="en-US" id="id_1168147_517066_2_1">Period 2</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PeriodTwoMember" xlink:to="galt_PeriodTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PlacementAgentMember" xlink:label="galt_PlacementAgentMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PlacementAgentMember_lbl" xml:lang="en-US" id="id_1168147_547978_3_1">Placement Agent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PlacementAgentMember_lbl" xml:lang="en-US" id="id_1168147_547978_1_1">Placement Agent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PlacementAgentMember_lbl" xml:lang="en-US" id="id_1168147_547978_2_1">Placement Agent</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PlacementAgentMember" xlink:to="galt_PlacementAgentMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US" id="id_1168147_498429_1_1">Plan Name [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US" id="id_1168147_498429_2_1">Plan Name [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="us-gaap_PlanNameDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameDomain_lbl" xml:lang="en-US" id="id_1168147_502068_1_1">Plan Name [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PlanNameDomain_lbl" xml:lang="en-US" id="id_1168147_502068_2_1">Plan Name [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PostConversionDividendRightsIssued" xlink:label="galt_PostConversionDividendRightsIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PostConversionDividendRightsIssued_lbl" xml:lang="en-US" id="id_1168147_624869_3_1">Post Conversion Dividend Rights Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PostConversionDividendRightsIssued_lbl" xml:lang="en-US" id="id_1168147_624869_1_1">Post Conversion Dividend Rights Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PostConversionDividendRightsIssued_lbl" xml:lang="en-US" id="id_1168147_624869_2_1">Post conversion dividend rights issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PostConversionDividendRightsIssued" xlink:to="galt_PostConversionDividendRightsIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount" xlink:label="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount_lbl" xml:lang="en-US" id="id_1168147_624870_3_1">Post Conversion Redemption Right Return on Investment Multiplier Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount_lbl" xml:lang="en-US" id="id_1168147_624870_1_1">Post Conversion Redemption Right Return On Investment Multiplier Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount_lbl" xml:lang="en-US" id="id_1168147_624870_2_1">Post conversion redemption right, return on investment multiplier amount</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount" xlink:to="galt_PostConversionRedemptionRightReturnOnInvestmentMultiplierAmount_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockAccretionOfRedemptionDiscount" xlink:label="us-gaap_PreferredStockAccretionOfRedemptionDiscount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockAccretionOfRedemptionDiscount_lbl" xml:lang="en-US" id="id_1168147_513099_1_1">Preferred Stock Accretion Of Redemption Discount</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PreferredStockAccretionOfRedemptionDiscount_lbl" xml:lang="en-US" id="id_1168147_513099_8_1">Preferred stock accretion</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockAccretionOfRedemptionDiscount" xlink:to="us-gaap_PreferredStockAccretionOfRedemptionDiscount_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="us-gaap_PreferredStockDividendRatePercentage"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xml:lang="en-US" id="id_1168147_501714_1_1">Preferred Stock Dividend Rate Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xml:lang="en-US" id="id_1168147_501714_2_1">Preferred stock, dividend rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PreferredStockDividendRatePercentage_lbl" xml:lang="en-US" id="id_1168147_501714_12_1">Rate of dividend</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockDividendRatePercentage" xlink:to="us-gaap_PreferredStockDividendRatePercentage_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xml:lang="en-US" id="id_1168147_512571_1_1">Preferred Stock Dividends Income Statement Impact</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl" xml:lang="en-US" id="id_1168147_512571_8_1">Preferred stock dividends</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockDividendsIncomeStatementImpact" xlink:to="us-gaap_PreferredStockDividendsIncomeStatementImpact_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockDividendsShares" xlink:label="us-gaap_PreferredStockDividendsShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockDividendsShares_lbl" xml:lang="en-US" id="id_1168147_498162_1_1">Preferred Stock Dividends Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockDividendsShares_lbl" xml:lang="en-US" id="id_1168147_498162_2_1">Convertible preferred stock dividend (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockDividendsShares" xlink:to="us-gaap_PreferredStockDividendsShares_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockLiquidationPreference" xlink:label="us-gaap_PreferredStockLiquidationPreference"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xml:lang="en-US" id="id_1168147_511033_1_1">Preferred Stock Liquidation Preference</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockLiquidationPreference_lbl" xml:lang="en-US" id="id_1168147_511033_2_1">Liquidation preference per share after series A preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockLiquidationPreference" xlink:to="us-gaap_PreferredStockLiquidationPreference_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_508638_1_1">Preferred Stock Par Or Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_508638_2_1">Preferred stock, par value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockRedemptionDate" xlink:label="us-gaap_PreferredStockRedemptionDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockRedemptionDate_lbl" xml:lang="en-US" id="id_1168147_508727_1_1">Preferred Stock Redemption Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockRedemptionDate_lbl" xml:lang="en-US" id="id_1168147_508727_2_1">Preferred stock redemption date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockRedemptionDate" xlink:to="us-gaap_PreferredStockRedemptionDate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockRedemptionPricePerShare" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xml:lang="en-US" id="id_1168147_509782_1_1">Preferred Stock Redemption Price Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockRedemptionPricePerShare_lbl" xml:lang="en-US" id="id_1168147_509782_2_1">Preferred stock redemption price</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockRedemptionPricePerShare" xlink:to="us-gaap_PreferredStockRedemptionPricePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_507083_1_1">Preferred Stock Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_507083_2_1">Preferred stock shares designated for issuance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_507083_12_1">Series A 12% convertible preferred stock, shares authorized</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US" id="id_1168147_513613_1_1">Preferred Stock Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US" id="id_1168147_513613_2_1">Series A 12% convertible preferred stock, issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="us-gaap_PreferredStockSharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_513494_1_1">Preferred Stock Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_513494_2_1">Series A 12% convertible preferred stock, outstanding</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PreferredStockStatedValuePerShare" xlink:label="galt_PreferredStockStatedValuePerShare"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PreferredStockStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_539831_3_1">Preferred Stock, Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PreferredStockStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_539831_1_1">Preferred Stock Stated Value Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PreferredStockStatedValuePerShare_lbl" xml:lang="en-US" id="id_1168147_539831_2_1">Preferred stock, stated value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PreferredStockStatedValuePerShare" xlink:to="galt_PreferredStockStatedValuePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US" id="id_1168147_513620_1_1">Preferred Stock Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockValue_lbl" xml:lang="en-US" id="id_1168147_513620_2_1">Series A 12% convertible preferred stock; 5,000,000 shares authorized, 1,562,500 issued and outstanding at December 31, 2012 and 2011</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US" id="id_1168147_497998_1_1">Prepaid Expense And Other Assets Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xml:lang="en-US" id="id_1168147_497998_2_1">Prepaid expenses and other current assets</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PrepaidExpensesAndOtherPolicyTextBlock" xlink:label="galt_PrepaidExpensesAndOtherPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PrepaidExpensesAndOtherPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_538650_3_1">Prepaid Expenses and Other, Policy</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PrepaidExpensesAndOtherPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_538650_1_1">Prepaid Expenses And Other Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PrepaidExpensesAndOtherPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_538650_2_1">Prepaid Expenses and Other Current Assets</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrivatePlacementMember_lbl" xml:lang="en-US" id="id_1168147_505866_1_1">Private Placement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrivatePlacementMember_lbl" xml:lang="en-US" id="id_1168147_505866_2_1">Private Placement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrivatePlacementMember" xlink:to="us-gaap_PrivatePlacementMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PrivatePlacementNumberOfUnitsAnnounced" xlink:label="galt_PrivatePlacementNumberOfUnitsAnnounced"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PrivatePlacementNumberOfUnitsAnnounced_lbl" xml:lang="en-US" id="id_1168147_610054_3_1">Private Placement, Number of Units Announced</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PrivatePlacementNumberOfUnitsAnnounced_lbl" xml:lang="en-US" id="id_1168147_610054_1_1">Private Placement Number Of Units Announced</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PrivatePlacementNumberOfUnitsAnnounced_lbl" xml:lang="en-US" id="id_1168147_610054_2_1">Private placement, number of shares issuable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PrivatePlacementNumberOfUnitsAnnounced" xlink:to="galt_PrivatePlacementNumberOfUnitsAnnounced_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="us-gaap_ProceedsFromConvertibleDebt"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_513616_1_1">Proceeds From Convertible Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_513616_2_1">Net proceeds from issuance of convertible debt instruments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromConvertibleDebt" xlink:to="us-gaap_ProceedsFromConvertibleDebt_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromGrantors" xlink:label="us-gaap_ProceedsFromGrantors"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromGrantors_lbl" xml:lang="en-US" id="id_1168147_506434_1_1">Proceeds From Grantors</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromGrantors_lbl" xml:lang="en-US" id="id_1168147_506434_2_1">Federal grant received</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromGrantors" xlink:to="us-gaap_ProceedsFromGrantors_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_499569_1_1">Proceeds From Issuance Of Common Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_499569_2_1">Net proceeds from issuance of common stock and warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US" id="id_1168147_499569_12_1">Proceeds from issuance of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_505167_1_1">Proceeds From Issuance Of Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_505167_2_1">Net proceeds from issuance of convertible preferred stock and related warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:to="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:label="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_lbl" xml:lang="en-US" id="id_1168147_514439_1_1">Proceeds From Issuance Of Preferred Stock And Preference Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_lbl" xml:lang="en-US" id="id_1168147_514439_2_1">Proceeds from issuance of preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock" xlink:to="us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts" xlink:label="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_624272_3_1">Proceeds From Issuance Of Preferred Stock, Net Of Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_624272_1_1">Proceeds From Issuance Of Preferred Stock Net Of Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_624272_2_1">Proceeds from issuance of preferred stock, net</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts" xlink:to="galt_ProceedsFromIssuanceOfPreferredStockNetOfIssuanceCosts_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPrivatePlacement" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xml:lang="en-US" id="id_1168147_511002_1_1">Proceeds From Issuance Of Private Placement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl" xml:lang="en-US" id="id_1168147_511002_2_1">Proceeds from sale of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfPrivatePlacement" xlink:to="us-gaap_ProceedsFromIssuanceOfPrivatePlacement_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_509773_1_1">Proceeds From Issuance Of Redeemable Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_509773_2_1">Net proceeds from issuance of redeemable convertible preferred stock and related warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock" xlink:to="us-gaap_ProceedsFromIssuanceOfRedeemableConvertiblePreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOfWarrants" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xml:lang="en-US" id="id_1168147_507141_1_1">Proceeds From Issuance Of Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfWarrants_lbl" xml:lang="en-US" id="id_1168147_507141_2_1">Proceeds from issuance of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfWarrants" xlink:to="us-gaap_ProceedsFromIssuanceOfWarrants_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl" xml:lang="en-US" id="id_1168147_512842_1_1">Proceeds From Issuance Or Sale Of Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl" xml:lang="en-US" id="id_1168147_512842_2_1">Net proceeds from issuance of stock and warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:to="us-gaap_ProceedsFromIssuanceOrSaleOfEquity_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ProceedsFromIssuanceOrSaleOfEquityGross" xlink:label="galt_ProceedsFromIssuanceOrSaleOfEquityGross"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ProceedsFromIssuanceOrSaleOfEquityGross_lbl" xml:lang="en-US" id="id_1168147_543428_3_1">Proceeds From Issuance Or Sale Of Equity Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ProceedsFromIssuanceOrSaleOfEquityGross_lbl" xml:lang="en-US" id="id_1168147_543428_1_1">Proceeds From Issuance Or Sale Of Equity Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ProceedsFromIssuanceOrSaleOfEquityGross_lbl" xml:lang="en-US" id="id_1168147_543428_2_1">Gross proceeds from issuance of stock and warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ProceedsFromIssuanceOrSaleOfEquityGross" xlink:to="galt_ProceedsFromIssuanceOrSaleOfEquityGross_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_lbl" xml:lang="en-US" id="id_1168147_500597_1_1">Proceeds From Payments For Other Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_lbl" xml:lang="en-US" id="id_1168147_500597_2_1">Proceeds from shareholder advances</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ProceedsFromStockOptionAndWarrantExercises" xlink:label="galt_ProceedsFromStockOptionAndWarrantExercises"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ProceedsFromStockOptionAndWarrantExercises_lbl" xml:lang="en-US" id="id_1168147_515564_3_1">The cash inflow associated with the amount received from holders exercising their stock options and warrants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ProceedsFromStockOptionAndWarrantExercises_lbl" xml:lang="en-US" id="id_1168147_515564_1_1">Proceeds From Stock Option And Warrant Exercises</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ProceedsFromStockOptionAndWarrantExercises_lbl" xml:lang="en-US" id="id_1168147_515564_2_1">Net proceeds from exercise of common stock warrants and options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ProceedsFromStockOptionAndWarrantExercises" xlink:to="galt_ProceedsFromStockOptionAndWarrantExercises_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_503911_1_1">Proceeds From Stock Options Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_503911_2_1">Proceeds from exercise of stock options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromStockOptionsExercised" xlink:to="us-gaap_ProceedsFromStockOptionsExercised_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ProceedsFromSubscriptionAdvances" xlink:label="galt_ProceedsFromSubscriptionAdvances"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ProceedsFromSubscriptionAdvances_lbl" xml:lang="en-US" id="id_1168147_624300_3_1">Proceeds from Subscription Advances</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ProceedsFromSubscriptionAdvances_lbl" xml:lang="en-US" id="id_1168147_624300_1_1">Proceeds From Subscription Advances</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ProceedsFromSubscriptionAdvances_lbl" xml:lang="en-US" id="id_1168147_624300_2_1">Subscription advances received</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ProceedsFromSubscriptionAdvances" xlink:to="galt_ProceedsFromSubscriptionAdvances_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xml:lang="en-US" id="id_1168147_510903_1_1">Property Plant And Equipment By Type [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xml:lang="en-US" id="id_1168147_510903_2_1">Property, Plant and Equipment, Type [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_508779_1_1">Property Plant And Equipment Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_508779_2_1">Property and Equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xml:lang="en-US" id="id_1168147_498887_1_1">Property Plant And Equipment Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xml:lang="en-US" id="id_1168147_498887_2_1">Property and equipment, gross</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US" id="id_1168147_502948_1_1">Property Plant And Equipment [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US" id="id_1168147_502948_2_1">Property, Plant and Equipment [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="id_1168147_514011_1_1">Property Plant And Equipment Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="id_1168147_514011_2_1">Property and equipment, net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US" id="id_1168147_514011_6_1">Property and equipment-net</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_500839_1_1">Property Plant And Equipment Policy [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xml:lang="en-US" id="id_1168147_500839_2_1">Property and Equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xml:lang="en-US" id="id_1168147_504415_1_1">Property Plant And Equipment [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xml:lang="en-US" id="id_1168147_504415_2_1">Property and Equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US" id="id_1168147_502590_1_1">Property Plant And Equipment Type [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US" id="id_1168147_502590_2_1">Property, Plant and Equipment, Type [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xml:lang="en-US" id="id_1168147_498488_1_1">Property Plant And Equipment Useful Life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xml:lang="en-US" id="id_1168147_498488_2_1">Estimated useful lives of property and equipment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis" xlink:label="us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis_lbl" xml:lang="en-US" id="id_1168147_499506_1_1">Prospective Adoption Of New Accounting Pronouncements [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis_lbl" xml:lang="en-US" id="id_1168147_499506_2_1">Prospective Adoption of New Accounting Pronouncements [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis" xlink:to="us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PublicOfferingMember" xlink:label="galt_PublicOfferingMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PublicOfferingMember_lbl" xml:lang="en-US" id="id_1168147_531939_3_1">Public Offering [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PublicOfferingMember_lbl" xml:lang="en-US" id="id_1168147_531939_1_1">Public Offering [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PublicOfferingMember_lbl" xml:lang="en-US" id="id_1168147_531939_2_1">Public Offering</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PublicOfferingMember" xlink:to="galt_PublicOfferingMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_PurchasePricePerUnitUnderPrivatePlacement" xlink:label="galt_PurchasePricePerUnitUnderPrivatePlacement"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_PurchasePricePerUnitUnderPrivatePlacement_lbl" xml:lang="en-US" id="id_1168147_595665_3_1">Purchase Price Per Unit Under Private Placement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_PurchasePricePerUnitUnderPrivatePlacement_lbl" xml:lang="en-US" id="id_1168147_595665_1_1">Purchase Price Per Unit Under Private Placement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_PurchasePricePerUnitUnderPrivatePlacement_lbl" xml:lang="en-US" id="id_1168147_595665_2_1">Private placement, price per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_PurchasePricePerUnitUnderPrivatePlacement" xlink:to="galt_PurchasePricePerUnitUnderPrivatePlacement_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RangeAxis" xlink:label="us-gaap_RangeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RangeAxis_lbl" xml:lang="en-US" id="id_1168147_504957_1_1">Range [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RangeAxis_lbl" xml:lang="en-US" id="id_1168147_504957_2_1">Range [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeAxis" xlink:to="us-gaap_RangeAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RangeMember" xlink:label="us-gaap_RangeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RangeMember_lbl" xml:lang="en-US" id="id_1168147_498452_1_1">Range [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RangeMember_lbl" xml:lang="en-US" id="id_1168147_498452_2_1">Range [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeMember" xlink:to="us-gaap_RangeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ReclassificationOfWarrantsToLiability" xlink:label="galt_ReclassificationOfWarrantsToLiability"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ReclassificationOfWarrantsToLiability_lbl" xml:lang="en-US" id="id_1168147_517571_3_1">Reclassification of Warrants to a Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ReclassificationOfWarrantsToLiability_lbl" xml:lang="en-US" id="id_1168147_517571_1_1">Reclassification Of Warrants To Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ReclassificationOfWarrantsToLiability_lbl" xml:lang="en-US" id="id_1168147_517571_2_1">Reclassification of Warrant Liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ReclassificationOfWarrantsToLiability" xlink:to="galt_ReclassificationOfWarrantsToLiability_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ReconciliationOfStatutoryTaxRateLineItems" xlink:label="galt_ReconciliationOfStatutoryTaxRateLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ReconciliationOfStatutoryTaxRateLineItems_lbl" xml:lang="en-US" id="id_1168147_548210_3_1">Reconciliation of Statutory Tax Rate [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ReconciliationOfStatutoryTaxRateLineItems_lbl" xml:lang="en-US" id="id_1168147_548210_1_1">Reconciliation Of Statutory Tax Rate [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ReconciliationOfStatutoryTaxRateLineItems_lbl" xml:lang="en-US" id="id_1168147_548210_2_1">Reconciliation of Statutory Tax Rate [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ReconciliationOfStatutoryTaxRateLineItems" xlink:to="galt_ReconciliationOfStatutoryTaxRateLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ReconciliationOfStatutoryTaxRateTable" xlink:label="galt_ReconciliationOfStatutoryTaxRateTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ReconciliationOfStatutoryTaxRateTable_lbl" xml:lang="en-US" id="id_1168147_547566_3_1">Reconciliation of Statutory Tax Rate [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ReconciliationOfStatutoryTaxRateTable_lbl" xml:lang="en-US" id="id_1168147_547566_1_1">Reconciliation Of Statutory Tax Rate [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ReconciliationOfStatutoryTaxRateTable_lbl" xml:lang="en-US" id="id_1168147_547566_2_1">Reconciliation of Statutory Tax Rate [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ReconciliationOfStatutoryTaxRateTable" xlink:to="galt_ReconciliationOfStatutoryTaxRateTable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_RedemptionDateDescription" xlink:label="galt_RedemptionDateDescription"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_RedemptionDateDescription_lbl" xml:lang="en-US" id="id_1168147_621833_3_1">Redemption Date Description</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_RedemptionDateDescription_lbl" xml:lang="en-US" id="id_1168147_621833_1_1">Redemption Date Description</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_RedemptionDateDescription_lbl" xml:lang="en-US" id="id_1168147_621833_2_1">Redemption date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_RedemptionDateDescription" xlink:to="galt_RedemptionDateDescription_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_RedemptionPeriod" xlink:label="galt_RedemptionPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_RedemptionPeriod_lbl" xml:lang="en-US" id="id_1168147_530185_3_1">Redemption Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_RedemptionPeriod_lbl" xml:lang="en-US" id="id_1168147_530185_1_1">Redemption Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_RedemptionPeriod_lbl" xml:lang="en-US" id="id_1168147_530185_2_1">Redemption period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_RedemptionPeriod" xlink:to="galt_RedemptionPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays" xlink:label="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_548197_3_1">Redemption Term Number of Days of Consecutive Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_548197_1_1">Redemption Term Number Of Days Of Consecutive Trading Days</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays_lbl" xml:lang="en-US" id="id_1168147_548197_2_1">Number of consecutive trading days for redemption of preferred stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays" xlink:to="galt_RedemptionTermNumberOfDaysOfConsecutiveTradingDays_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="us-gaap_RepaymentsOfConvertibleDebt"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_507441_1_1">Repayments Of Convertible Debt</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_lbl" xml:lang="en-US" id="id_1168147_507441_8_1">Repayment of convertible debt instruments</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfConvertibleDebt" xlink:to="us-gaap_RepaymentsOfConvertibleDebt_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ResearchAndDevelopmentCreditsExpirationYear" xlink:label="galt_ResearchAndDevelopmentCreditsExpirationYear"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ResearchAndDevelopmentCreditsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_609999_3_1">Research and Development Credits, Expiration Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ResearchAndDevelopmentCreditsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_609999_1_1">Research And Development Credits Expiration Year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ResearchAndDevelopmentCreditsExpirationYear_lbl" xml:lang="en-US" id="id_1168147_609999_2_1">Research and development credits, expiration year</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ResearchAndDevelopmentCreditsExpirationYear" xlink:to="galt_ResearchAndDevelopmentCreditsExpirationYear_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="us-gaap_ResearchAndDevelopmentExpense"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xml:lang="en-US" id="id_1168147_507943_1_1">Research And Development Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xml:lang="en-US" id="id_1168147_507943_2_1">Research and development</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xml:lang="en-US" id="id_1168147_506779_1_1">Research And Development Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xml:lang="en-US" id="id_1168147_506779_2_1">Research and Development</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpenseMember" xlink:to="us-gaap_ResearchAndDevelopmentExpenseMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xml:lang="en-US" id="id_1168147_510919_1_1">Research And Development Expense Policy</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xml:lang="en-US" id="id_1168147_510919_2_1">Research and Development Expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_lbl" xml:lang="en-US" id="id_1168147_509879_1_1">Restricted Cash And Cash Equivalents Noncurrent</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xml:lang="en-US" id="id_1168147_508961_2_1">Sale of Stock, Name of Transaction [Domain]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xml:lang="en-US" id="id_1168147_514577_1_1">Sale Of Stock Price Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xml:lang="en-US" id="id_1168147_514577_2_1">Price of common stock per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockPricePerShare" xlink:to="us-gaap_SaleOfStockPricePerShare_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SaleOfStockPursuantToExerciseOfUnderwritersOverAllotmentOption" xlink:label="galt_SaleOfStockPursuantToExerciseOfUnderwritersOverAllotmentOption"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SaleOfStockPursuantToExerciseOfUnderwritersOverAllotmentOption_lbl" xml:lang="en-US" id="id_1168147_593834_3_1">Sale Of Stock Pursuant To Exercise Of Underwriters Over Allotment Option</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SaleOfStockPursuantToExerciseOfUnderwritersOverAllotmentOption_lbl" xml:lang="en-US" id="id_1168147_593834_1_1">Sale Of Stock Pursuant To Exercise Of Underwriters Over Allotment Option</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ScenarioOneMember" xlink:label="galt_ScenarioOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_517783_3_1">Scenario 1 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_517783_1_1">Scenario One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_517783_2_1">Scenario 1</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ScenarioOneMember" xlink:to="galt_ScenarioOneMember_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ScenarioTwoMember_lbl" xml:lang="en-US" id="id_1168147_517784_3_1">Scenario 2 [Member]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScenarioUnspecifiedDomain_lbl" xml:lang="en-US" id="id_1168147_505562_1_1">Scenario Unspecified [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScenarioUnspecifiedDomain_lbl" xml:lang="en-US" id="id_1168147_505562_2_1">Scenario, Unspecified [Domain]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ScheduleOfAccruedLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_518820_3_1">Schedule of Accrued Liabilities [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ScheduleOfAccruedLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_518820_1_1">Schedule Of Accrued Liabilities [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ScheduleOfAccruedLiabilitiesLineItems_lbl" xml:lang="en-US" id="id_1168147_518820_2_1">Schedule of Accrued Liabilities [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ScheduleOfAccruedLiabilitiesLineItems" xlink:to="galt_ScheduleOfAccruedLiabilitiesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ScheduleOfAccruedLiabilitiesTable" xlink:label="galt_ScheduleOfAccruedLiabilitiesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ScheduleOfAccruedLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_542011_3_1">Schedule of Accrued Liabilities [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ScheduleOfAccruedLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_542011_1_1">Schedule Of Accrued Liabilities [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ScheduleOfAccruedLiabilitiesTable_lbl" xml:lang="en-US" id="id_1168147_542011_2_1">Schedule of Accrued Liabilities [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ScheduleOfAccruedLiabilitiesTable" xlink:to="galt_ScheduleOfAccruedLiabilitiesTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:label="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_lbl" xml:lang="en-US" id="id_1168147_510717_1_1">Schedule Of Accrued Liabilities Table [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_lbl" xml:lang="en-US" id="id_1168147_510717_2_1">Accrued Expenses</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xml:lang="en-US" id="id_1168147_514668_2_1">Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xml:lang="en-US" id="id_1168147_508745_1_1">Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xml:lang="en-US" id="id_1168147_508745_2_1">Dilutive Shares Which Could Exist Pursuant to Exercise of Outstanding Stock Instruments and Which were not Included in Calculation</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ScheduleOfChangesInFairValueOfWarrantLiabilityTableTextBlock" xlink:label="galt_ScheduleOfChangesInFairValueOfWarrantLiabilityTableTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ScheduleOfChangesInFairValueOfWarrantLiabilityTableTextBlock_lbl" xml:lang="en-US" id="id_1168147_547592_3_1">Schedule Of Changes In Fair Value Of Warrant Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ScheduleOfChangesInFairValueOfWarrantLiabilityTableTextBlock_lbl" xml:lang="en-US" id="id_1168147_547592_1_1">Schedule Of Changes In Fair Value Of Warrant Liability Table [Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable_lbl" xml:lang="en-US" id="id_1168147_513799_2_1">Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SecondPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538000_3_1">Second Payment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SecondPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538000_1_1">Second Payment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SecondPaymentMember_lbl" xml:lang="en-US" id="id_1168147_538000_2_1">Second Payment</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SecondPaymentMember" xlink:to="galt_SecondPaymentMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SecurityDeposit" xlink:label="us-gaap_SecurityDeposit"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SecurityDeposit_lbl" xml:lang="en-US" id="id_1168147_506872_1_1">Security Deposit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SecurityDeposit_lbl" xml:lang="en-US" id="id_1168147_506872_2_1">Security deposit for leased office space</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SecurityDeposit" xlink:to="us-gaap_SecurityDeposit_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember" xlink:label="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624805_3_1">September Thirty Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624805_1_1">September Thirty Twenty Zero Nine Series B Two Transaction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl" xml:lang="en-US" id="id_1168147_624805_2_1">September 30, 2009 Series B-2 Transaction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember" xlink:to="galt_SeptemberThirtyTwentyZeroNineSeriesBTwoTransactionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesAAndBWarrantsMember" xlink:label="galt_SeriesAAndBWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesAAndBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_604655_3_1">Series A and B Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesAAndBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_604655_1_1">Series A And B Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesAAndBWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_604655_2_1">Series A and B Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesAAndBWarrantsMember" xlink:to="galt_SeriesAAndBWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesAOneWarrantMember" xlink:label="galt_SeriesAOneWarrantMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesAOneWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544385_3_1">Series A One Warrant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesAOneWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544385_1_1">Series A One Warrant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesAOneWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544385_2_1">Series A One Warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesAOneWarrantMember" xlink:to="galt_SeriesAOneWarrantMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="us-gaap_SeriesAPreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_498640_1_1">Series A Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SeriesAPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_498640_2_1">Series A 12% Convertible Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesAPreferredStockMember" xlink:to="us-gaap_SeriesAPreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesARedeemableConvertiblePreferredStockMember" xlink:label="galt_SeriesARedeemableConvertiblePreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesARedeemableConvertiblePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_537761_3_1">Series A Redeemable Convertible Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesARedeemableConvertiblePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_537761_1_1">Series A Redeemable Convertible Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesARedeemableConvertiblePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_537761_2_1">Series A Redeemable Convertible Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesARedeemableConvertiblePreferredStockMember" xlink:to="galt_SeriesARedeemableConvertiblePreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesATwoWarrantMember" xlink:label="galt_SeriesATwoWarrantMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesATwoWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544386_3_1">Series A Two Warrant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesATwoWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544386_1_1">Series A Two Warrant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesATwoWarrantMember_lbl" xml:lang="en-US" id="id_1168147_544386_2_1">Series A Two Warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesATwoWarrantMember" xlink:to="galt_SeriesATwoWarrantMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesBDirectorsMember" xlink:label="galt_SeriesBDirectorsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesBDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_624872_3_1">Series B Directors [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesBDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_624872_1_1">Series B Directors [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesBDirectorsMember_lbl" xml:lang="en-US" id="id_1168147_624872_2_1">Series B Directors</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesBDirectorsMember" xlink:to="galt_SeriesBDirectorsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesBNomineesMember" xlink:label="galt_SeriesBNomineesMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesBNomineesMember_lbl" xml:lang="en-US" id="id_1168147_624873_3_1">Series B Nominees [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesBNomineesMember_lbl" xml:lang="en-US" id="id_1168147_624873_1_1">Series B Nominees [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesBNomineesMember_lbl" xml:lang="en-US" id="id_1168147_624873_2_1">Series B Nominees</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesBNomineesMember" xlink:to="galt_SeriesBNomineesMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesBOnePreferredStockMember" xlink:label="galt_SeriesBOnePreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesBOnePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516922_3_1">Series B-1 Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesBOnePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516922_1_1">Series B One Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesBOnePreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516922_2_1">Series B-1 12% Redeemable Convertible Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesBOnePreferredStockMember" xlink:to="galt_SeriesBOnePreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="us-gaap_SeriesBPreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SeriesBPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_511225_1_1">Series B Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SeriesBPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_511225_2_1">Series B Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesBPreferredStockMember" xlink:to="us-gaap_SeriesBPreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeriesBTwoPreferredStockMember" xlink:label="galt_SeriesBTwoPreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeriesBTwoPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516923_3_1">Series B2 Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeriesBTwoPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516923_1_1">Series B Two Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeriesBTwoPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_516923_2_1">Series B-2 12% Redeemable Convertible Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeriesBTwoPreferredStockMember" xlink:to="galt_SeriesBTwoPreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SeriesCPreferredStockMember" xlink:label="us-gaap_SeriesCPreferredStockMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SeriesCPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_501142_1_1">Series C Preferred Stock [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SeriesCPreferredStockMember_lbl" xml:lang="en-US" id="id_1168147_501142_2_1">Series C Super Dividend Convertible Preferred Stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SeriesCPreferredStockMember" xlink:to="us-gaap_SeriesCPreferredStockMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SeverancePaymentPeriod" xlink:label="galt_SeverancePaymentPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SeverancePaymentPeriod_lbl" xml:lang="en-US" id="id_1168147_542197_3_1">Severance Payment Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SeverancePaymentPeriod_lbl" xml:lang="en-US" id="id_1168147_542197_1_1">Severance Payment Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SeverancePaymentPeriod_lbl" xml:lang="en-US" id="id_1168147_542197_2_1">Severance payment period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SeverancePaymentPeriod" xlink:to="galt_SeverancePaymentPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_501410_1_1">Share Based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_501410_2_1">Stock-based compensation expense</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xml:lang="en-US" id="id_1168147_512078_1_1">Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xml:lang="en-US" id="id_1168147_512078_2_1">Stock awards, vesting period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis_lbl" xml:lang="en-US" id="id_1168147_557712_3_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis_lbl" xml:lang="en-US" id="id_1168147_557712_1_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis_lbl" xml:lang="en-US" id="id_1168147_557712_2_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain_lbl" xml:lang="en-US" id="id_1168147_558045_3_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain_lbl" xml:lang="en-US" id="id_1168147_558045_1_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain_lbl" xml:lang="en-US" id="id_1168147_558045_2_1">Share Based Compensation Arrangement By Share Based Payment Award Compensation Plans [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardCompensationPlansDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod_lbl" xml:lang="en-US" id="id_1168147_554321_3_1">Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Grants In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod_lbl" xml:lang="en-US" id="id_1168147_554321_1_1">Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Grants In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod_lbl" xml:lang="en-US" id="id_1168147_554321_2_1">Non-plan stock option grants to employees and non-employees</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsGrantsInPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriod" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisesInPeriod_lbl" xml:lang="en-US" id="id_1168147_528362_3_1">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Exercises in Period</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_503317_1_1">Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_503317_2_1">Number of common stock for issuance upon exercise of grants</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xml:lang="en-US" id="id_1168147_498929_1_1">Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract_lbl" xml:lang="en-US" id="id_1168147_518608_3_1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xml:lang="en-US" id="id_1168147_508840_8_1">Forfeited/Cancelled</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantPerMonth" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantPerMonth"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantPerMonth_lbl" xml:lang="en-US" id="id_1168147_601504_3_1">Share Based Compensation Arrangement by Share Based Payment Award Options Grant per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantPerMonth_lbl" xml:lang="en-US" id="id_1168147_601504_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Grant Per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantPerMonth_lbl" xml:lang="en-US" id="id_1168147_601504_2_1">Number of options granted per month</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl" xml:lang="en-US" id="id_1168147_513542_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_lbl" xml:lang="en-US" id="id_1168147_513542_2_1">Number of options granted</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue" xlink:label="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_lbl" xml:lang="en-US" id="id_1168147_548925_3_1">Share Based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_lbl" xml:lang="en-US" id="id_1168147_548925_1_1">Share Based Compensation Arrangement By Sharebased Payment Award Options Grants In Period Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_lbl" xml:lang="en-US" id="id_1168147_548925_2_1">Stock option, fair market value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue" xlink:to="galt_ShareBasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantsInPeriodGrantDateFairValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US" id="id_1168147_507026_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US" id="id_1168147_507026_2_1">Granted</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US" id="id_1168147_514885_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xml:lang="en-US" id="id_1168147_514885_2_1">Weighted-average grant-date fair values of options granted</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuableInPeriod" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuableInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuableInPeriod_lbl" xml:lang="en-US" id="id_1168147_623653_3_1">Share Based Compensation Arrangement by Share Based Payment Award Options Issuable in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuableInPeriod_lbl" xml:lang="en-US" id="id_1168147_623653_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Issuable In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuableInPeriod_lbl" xml:lang="en-US" id="id_1168147_623653_2_1">Number of options issuable as services are performed</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth_lbl" xml:lang="en-US" id="id_1168147_623652_3_1">Share Based Compensation Arrangement by Share Based Payment Award Options Issuable per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth_lbl" xml:lang="en-US" id="id_1168147_623652_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Issuable Per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth_lbl" xml:lang="en-US" id="id_1168147_623652_2_1">Number of options vest per month</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsIssuablePerMonth_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber" xlink:label="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber_lbl" xml:lang="en-US" id="id_1168147_528970_3_1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber_lbl" xml:lang="en-US" id="id_1168147_528970_1_1">Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber_lbl" xml:lang="en-US" id="id_1168147_528970_2_1">Unvested option</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber" xlink:to="galt_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumber_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US" id="id_1168147_503931_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US" id="id_1168147_503931_2_1">Outstanding, December 31, 2012</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US" id="id_1168147_512372_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US" id="id_1168147_512372_4_1">Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US" id="id_1168147_512372_5_1">Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US" id="id_1168147_512372_2_1">Non-plan grants outstanding</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_lbl" xml:lang="en-US" id="id_1168147_501064_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding [Roll Forward]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_lbl" xml:lang="en-US" id="id_1168147_501064_2_1">Shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_507672_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_507672_4_1">Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_507672_5_1">Beginning Balance</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_lbl" xml:lang="en-US" id="id_1168147_500585_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_lbl" xml:lang="en-US" id="id_1168147_500585_2_1">Weighted Average Exercise Price</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedFairValueAdjustments" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedFairValueAdjustments"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedFairValueAdjustments_lbl" xml:lang="en-US" id="id_1168147_610128_3_1">Share Based Compensation Arrangement By Share Based Payment Award Options Unvested Fair Value Adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedFairValueAdjustments_lbl" xml:lang="en-US" id="id_1168147_610128_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Unvested Fair Value Adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsUnvestedFairValueAdjustments_lbl" xml:lang="en-US" id="id_1168147_610128_2_1">Fair value adjustments of unvested options</label>
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    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod_lbl" xml:lang="en-US" id="id_1168147_528489_3_1">Share Based Compensation Arrangement by Share Based Payment Award, Options, Vested in Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod_lbl" xml:lang="en-US" id="id_1168147_528489_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod_lbl" xml:lang="en-US" id="id_1168147_528489_2_1">Number of options vested</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue_lbl" xml:lang="en-US" id="id_1168147_513811_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue_lbl" xml:lang="en-US" id="id_1168147_513811_2_1">Total fair value of options vested</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage_lbl" xml:lang="en-US" id="id_1168147_550961_3_1">Share Based Compensation Arrangement By Share Based Payment Award Options Vested Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage_lbl" xml:lang="en-US" id="id_1168147_550961_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Vested Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage_lbl" xml:lang="en-US" id="id_1168147_550961_2_1">Options vesting rate, vested immediately</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedPercentage_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth_lbl" xml:lang="en-US" id="id_1168147_623649_3_1">Share Based Compensation Arrangement by Share Based Payment Award Options Vest per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth_lbl" xml:lang="en-US" id="id_1168147_623649_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Vest Per Month</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth_lbl" xml:lang="en-US" id="id_1168147_623649_2_1">Number of options vest per month</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestPerMonth_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_lbl" xml:lang="en-US" id="id_1168147_518607_3_1">Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_lbl" xml:lang="en-US" id="id_1168147_518607_1_1">Share Based Compensation Arrangement By Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_lbl" xml:lang="en-US" id="id_1168147_518607_2_1">Weighted Average Remaining Contractual Life (Years)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:to="galt_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_508090_1_1">Share Based Compensation Arrangement By Share Based Payment Award Shares Issued In Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_lbl" xml:lang="en-US" id="id_1168147_508090_2_1">Stock option issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xml:lang="en-US" id="id_1168147_499605_1_1">Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xml:lang="en-US" id="id_1168147_499605_2_1">Award Type [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_505372_1_1">Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_505372_2_1">Exercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_501696_1_1">Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_501696_2_1">Forfeited/Cancelled</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_501417_1_1">Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_501417_2_1">Exercise price of stock options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US" id="id_1168147_501417_12_1">Granted</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US" id="id_1168147_507431_1_1">Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term 2</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US" id="id_1168147_507431_2_1">Outstanding, December 31, 2012</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ShareConversionRatio" xlink:label="galt_ShareConversionRatio"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ShareConversionRatio_lbl" xml:lang="en-US" id="id_1168147_579943_3_1">Share Conversion Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ShareConversionRatio_lbl" xml:lang="en-US" id="id_1168147_579943_1_1">Share Conversion Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ShareConversionRatio_lbl" xml:lang="en-US" id="id_1168147_579943_2_1">Convertible stock conversion ratio</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ShareConversionRatio" xlink:to="galt_ShareConversionRatio_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SharePrice" xlink:label="us-gaap_SharePrice"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharePrice_lbl" xml:lang="en-US" id="id_1168147_499551_1_1">Share Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharePrice_lbl" xml:lang="en-US" id="id_1168147_499551_2_1">Common stock price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SharePrice_lbl" xml:lang="en-US" id="id_1168147_499551_12_1">Fair market value of common stock per share</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_507421_1_1">Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_SharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_507421_4_1">Ending Balance (in shares)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_SharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_507421_5_1">Beginning Balance (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SignificantAccountingPoliciesLineItems" xlink:label="galt_SignificantAccountingPoliciesLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US" id="id_1168147_518720_3_1">Significant Accounting Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US" id="id_1168147_518720_1_1">Significant Accounting Policies [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SignificantAccountingPoliciesLineItems_lbl" xml:lang="en-US" id="id_1168147_518720_2_1">Significant Accounting Policies [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SignificantAccountingPoliciesLineItems" xlink:to="galt_SignificantAccountingPoliciesLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SignificantAccountingPoliciesTable" xlink:label="galt_SignificantAccountingPoliciesTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US" id="id_1168147_541657_3_1">Significant Accounting Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US" id="id_1168147_541657_1_1">Significant Accounting Policies [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SignificantAccountingPoliciesTable_lbl" xml:lang="en-US" id="id_1168147_541657_2_1">Significant Accounting Policies [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SignificantAccountingPoliciesTable" xlink:to="galt_SignificantAccountingPoliciesTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US" id="id_1168147_513804_1_1">Significant Accounting Policies [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US" id="id_1168147_513804_2_1">Summary of Significant Accounting Policies</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StateAndLocalJurisdictionMember" xlink:label="us-gaap_StateAndLocalJurisdictionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StateAndLocalJurisdictionMember_lbl" xml:lang="en-US" id="id_1168147_509983_1_1">State And Local Jurisdiction [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StateAndLocalJurisdictionMember_lbl" xml:lang="en-US" id="id_1168147_509983_2_1">State and Local Jurisdiction</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StateAndLocalJurisdictionMember" xlink:to="us-gaap_StateAndLocalJurisdictionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US" id="id_1168147_513696_1_1">Statement Class Of Stock [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US" id="id_1168147_513696_2_1">Class of Stock [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xml:lang="en-US" id="id_1168147_505872_1_1">Statement Equity Components [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xml:lang="en-US" id="id_1168147_505872_2_1">Equity Components [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US" id="id_1168147_507536_1_1">Statement [Line Items]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US" id="id_1168147_511205_1_1">Statement Of Cash Flows [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US" id="id_1168147_511205_2_1">Statement of Cash Flows [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US" id="id_1168147_505972_1_1">Statement Of Financial Position [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US" id="id_1168147_505972_2_1">Statement of Financial Position [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl"/>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_502727_1_1">Statement Of Stockholders Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_502727_2_1">Statement of Stockholders' Equity [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="us-gaap_StatementScenarioAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementScenarioAxis_lbl" xml:lang="en-US" id="id_1168147_507189_1_1">Statement Scenario [Axis]</label>
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    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementScenarioAxis" xlink:to="us-gaap_StatementScenarioAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US" id="id_1168147_509593_1_1">Statement [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US" id="id_1168147_509593_2_1">Statement [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockBasedCompensation" xlink:label="galt_StockBasedCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_519844_3_1">Stock-based Compensation Expense.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_519844_1_1">Stock Based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_519844_2_1">Stock compensation expense related to fair market revaluation</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockBasedCompensation" xlink:to="galt_StockBasedCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:label="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_lbl" xml:lang="en-US" id="id_1168147_502394_1_1">Stock Granted During Period Value Sharebased Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_lbl" xml:lang="en-US" id="id_1168147_502394_2_1">Stock option, fair market value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation" xlink:to="us-gaap_StockGrantedDuringPeriodValueSharebasedCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_500872_1_1">Stockholders Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_500872_4_1">Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_500872_5_1">Beginning Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US" id="id_1168147_500872_6_1">Total stockholders' equity (deficit)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_498963_1_1">Stockholders Equity [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US" id="id_1168147_498963_2_1">Stockholders' equity (deficit):</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockholdersEquityLineItems" xlink:label="galt_StockholdersEquityLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockholdersEquityLineItems_lbl" xml:lang="en-US" id="id_1168147_558568_3_1">Stockholders Equity [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockholdersEquityLineItems_lbl" xml:lang="en-US" id="id_1168147_558568_1_1">Stockholders Equity [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockholdersEquityLineItems_lbl" xml:lang="en-US" id="id_1168147_558568_2_1">Stockholders Equity [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockholdersEquityLineItems" xlink:to="galt_StockholdersEquityLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_498764_1_1">Stockholders Equity Note Disclosure [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl" xml:lang="en-US" id="id_1168147_498764_2_1">Stockholders' Deficit</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockholdersEquityNoteStockSplitConversionRatio" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio_lbl" xml:lang="en-US" id="id_1168147_503405_1_1">Stockholders Equity Note Stock Split Conversion Ratio</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockholdersEquityNoteStockSplitConversionRatio_lbl" xml:lang="en-US" id="id_1168147_503405_2_1">Reverse stock split ratio</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteStockSplitConversionRatio" xlink:to="us-gaap_StockholdersEquityNoteStockSplitConversionRatio_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIncentivePlanTwentyZeroOneMember" xlink:label="galt_StockIncentivePlanTwentyZeroOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIncentivePlanTwentyZeroOneMember_lbl" xml:lang="en-US" id="id_1168147_610126_3_1">Stock Incentive Plan Twenty Zero One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIncentivePlanTwentyZeroOneMember_lbl" xml:lang="en-US" id="id_1168147_610126_1_1">Stock Incentive Plan Twenty Zero One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIncentivePlanTwentyZeroOneMember_lbl" xml:lang="en-US" id="id_1168147_610126_2_1">Stock Incentive Plan Twenty Zero One</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIncentivePlanTwentyZeroOneMember" xlink:to="galt_StockIncentivePlanTwentyZeroOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuableShares" xlink:label="galt_StockIssuableShares"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuableShares_lbl" xml:lang="en-US" id="id_1168147_528865_3_1">Stock Issuable, Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuableShares_lbl" xml:lang="en-US" id="id_1168147_528865_1_1">Stock Issuable Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuableShares_lbl" xml:lang="en-US" id="id_1168147_528865_2_1">Preferred stock issuable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuableShares" xlink:to="galt_StockIssuableShares_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuableValue" xlink:label="galt_StockIssuableValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuableValue_lbl" xml:lang="en-US" id="id_1168147_520850_3_1">Stock Issuable Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuableValue_lbl" xml:lang="en-US" id="id_1168147_520850_1_1">Stock Issuable Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuableValue_lbl" xml:lang="en-US" id="id_1168147_520850_2_1">Preferred stock value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuableValue" xlink:to="galt_StockIssuableValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuanceCosts" xlink:label="galt_StockIssuanceCosts"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_527342_3_1">Stock Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_527342_1_1">Stock Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuanceCosts_lbl" xml:lang="en-US" id="id_1168147_527342_2_1">Issuance of stock, issuance costs</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuanceCosts" xlink:to="galt_StockIssuanceCosts_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssued1" xlink:label="us-gaap_StockIssued1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssued1_lbl" xml:lang="en-US" id="id_1168147_503316_1_1">Stock Issued 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssued1_lbl" xml:lang="en-US" id="id_1168147_503316_2_1">Issuance of stock to acquire Pro-Pharmaceuticals-NV</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssued1" xlink:to="us-gaap_StockIssued1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_501062_1_1">Stock Issued During Period Shares Conversion Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_501062_2_1">Stock issued in conversion of convertible securities (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities" xlink:label="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_528506_3_1">Stock Issued During Period Shares Conversion Or Exchange Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_528506_1_1">Stock Issued During Period Shares Conversion Or Exchange Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_528506_2_1">Issuance of common stock and beneficial conversion feature related to convertible note in 2001 (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities" xlink:to="galt_StockIssuedDuringPeriodSharesConversionOrExchangeOfConvertibleSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodSharesFounders" xlink:label="galt_StockIssuedDuringPeriodSharesFounders"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodSharesFounders_lbl" xml:lang="en-US" id="id_1168147_528728_3_1">Stock Issued During Period, Shares, Founders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodSharesFounders_lbl" xml:lang="en-US" id="id_1168147_528728_1_1">Stock Issued During Period Shares Founders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodSharesFounders_lbl" xml:lang="en-US" id="id_1168147_528728_2_1">Issuance of founders shares July 10, 2000 (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodSharesFounders" xlink:to="galt_StockIssuedDuringPeriodSharesFounders_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xml:lang="en-US" id="id_1168147_498123_1_1">Stock Issued During Period Shares Issued For Services</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl" xml:lang="en-US" id="id_1168147_498123_2_1">Common stock issued for compensation, shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodSharesMerger" xlink:label="galt_StockIssuedDuringPeriodSharesMerger"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodSharesMerger_lbl" xml:lang="en-US" id="id_1168147_528405_3_1">Number of shares of stock issued during the period pursuant to a merger.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodSharesMerger_lbl" xml:lang="en-US" id="id_1168147_528405_1_1">Stock Issued During Period Shares Merger</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodSharesMerger_lbl" xml:lang="en-US" id="id_1168147_528405_2_1">Issuance of common stock in connection with reverse merger of Pro-Pharmaceuticals-NV in 2001 (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodSharesMerger" xlink:to="galt_StockIssuedDuringPeriodSharesMerger_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xml:lang="en-US" id="id_1168147_513261_1_1">Stock Issued During Period Shares New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xml:lang="en-US" id="id_1168147_513261_2_1">Issuance of common stock (in shares)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xml:lang="en-US" id="id_1168147_513261_12_1">Shares of common stock issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl" xml:lang="en-US" id="id_1168147_514694_1_1">Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl" xml:lang="en-US" id="id_1168147_514694_2_1">Issuance of restricted common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:to="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xml:lang="en-US" id="id_1168147_498169_1_1">Stock Issued During Period Shares Reverse Stock Splits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xml:lang="en-US" id="id_1168147_498169_2_1">Issuance of shares related to reverse split of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits" xlink:to="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_513139_1_1">Stock Issued During Period Shares Share Based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_513139_2_1">Stock compensation related to the issuance of common shares (in shares)</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_502579_1_1">Stock Issued During Period Shares Stock Options Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_502579_2_1">Issuance of common stock upon exercise of options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_502579_12_1">Number of stock options exercised</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_502579_8_1">Exercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount" xlink:label="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount_lbl" xml:lang="en-US" id="id_1168147_621302_3_1">Stock Issued During Period Shares Stock Options Exercised Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount_lbl" xml:lang="en-US" id="id_1168147_621302_1_1">Stock Issued During Period Shares Stock Options Exercised Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount_lbl" xml:lang="en-US" id="id_1168147_621302_2_1">Stock options exercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount" xlink:to="galt_StockIssuedDuringPeriodSharesStockOptionsExercisedAmount_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodSharesStockWarrantsExercised" xlink:label="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_528407_3_1">Number of shares issued during the period as a result of the exercise of warrants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_528407_1_1">Stock Issued During Period Shares Stock Warrants Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_528407_2_1">Issuance of common stock upon exercise of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised" xlink:to="galt_StockIssuedDuringPeriodSharesStockWarrantsExercised_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_506303_1_1">Stock Issued During Period Value Conversion Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_506303_2_1">Stock issued in conversion of convertible securities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities" xlink:label="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_522996_3_1">Stock Issued During Period Value Conversion Or Exchange Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_522996_1_1">Stock Issued During Period Value Conversion Or Exchange Of Convertible Securities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities_lbl" xml:lang="en-US" id="id_1168147_522996_2_1">Issuance of common stock and beneficial conversion feature related to convertible note in 2001</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities" xlink:to="galt_StockIssuedDuringPeriodValueConversionOrExchangeOfConvertibleSecurities_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodValueFounders" xlink:label="galt_StockIssuedDuringPeriodValueFounders"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodValueFounders_lbl" xml:lang="en-US" id="id_1168147_524145_3_1">Stock Issued During Period, Value, Founders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodValueFounders_lbl" xml:lang="en-US" id="id_1168147_524145_1_1">Stock Issued During Period Value Founders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodValueFounders_lbl" xml:lang="en-US" id="id_1168147_524145_2_1">Issuance of founders shares July 10, 2000</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodValueFounders" xlink:to="galt_StockIssuedDuringPeriodValueFounders_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xml:lang="en-US" id="id_1168147_506676_1_1">Stock Issued During Period Value Issued For Services</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xml:lang="en-US" id="id_1168147_506676_2_1">Common stock issued for compensation, value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodValueMerger" xlink:label="galt_StockIssuedDuringPeriodValueMerger"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodValueMerger_lbl" xml:lang="en-US" id="id_1168147_519854_3_1">Value of stock issued pursuant to a merger during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodValueMerger_lbl" xml:lang="en-US" id="id_1168147_519854_1_1">Stock Issued During Period Value Merger</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodValueMerger_lbl" xml:lang="en-US" id="id_1168147_519854_2_1">Issuance of common stock in connection with reverse merger of Pro-Pharmaceuticals-NV in 2001</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodValueMerger" xlink:to="galt_StockIssuedDuringPeriodValueMerger_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US" id="id_1168147_505821_1_1">Stock Issued During Period Value New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/positiveLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US" id="id_1168147_505821_32_1">Net total capital through sale and issuance of common stock and warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US" id="id_1168147_505821_2_1">Fair value of common stock issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US" id="id_1168147_505821_12_1">Issuance of common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xml:lang="en-US" id="id_1168147_512530_1_1">Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl" xml:lang="en-US" id="id_1168147_512530_2_1">Issuance of restricted common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:to="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_514037_1_1">Stock Issued During Period Value Share Based Compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl" xml:lang="en-US" id="id_1168147_514037_2_1">Stock compensation related to the issuance of common shares</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:to="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_507318_1_1">Stock Issued During Period Value Stock Options Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xml:lang="en-US" id="id_1168147_507318_2_1">Issuance of common stock upon exercise of options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedDuringPeriodValueStockWarrantsExercised" xlink:label="galt_StockIssuedDuringPeriodValueStockWarrantsExercised"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_519857_3_1">Value stock issued during the period as a result of the exercise of warrants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_519857_1_1">Stock Issued During Period Value Stock Warrants Exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_519857_2_1">Issuance of common stock upon exercise of warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="galt_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl" xml:lang="en-US" id="id_1168147_519857_12_1">Warrant exercise value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedDuringPeriodValueStockWarrantsExercised" xlink:to="galt_StockIssuedDuringPeriodValueStockWarrantsExercised_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue" xlink:label="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue_lbl" xml:lang="en-US" id="id_1168147_545135_3_1">Stock Issued Issuance Costs, Warrants Issued for Agents, Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue_lbl" xml:lang="en-US" id="id_1168147_545135_1_1">Stock Issued Issuance Costs Warrants Issued For Agents Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue_lbl" xml:lang="en-US" id="id_1168147_545135_2_1">Costs for warrants issued to placement agent</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue" xlink:to="galt_StockIssuedIssuanceCostsWarrantsIssuedForAgentsFairValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockOptionMember" xlink:label="us-gaap_StockOptionMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockOptionMember_lbl" xml:lang="en-US" id="id_1168147_506554_1_1">Stock Option [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockOptionMember_lbl" xml:lang="en-US" id="id_1168147_506554_2_1">Stock Option</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockOptionMember" xlink:to="us-gaap_StockOptionMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_StockOptionsMember" xlink:label="us-gaap_StockOptionsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockOptionsMember_lbl" xml:lang="en-US" id="id_1168147_514283_1_1">Stock Options [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockOptionsMember_lbl" xml:lang="en-US" id="id_1168147_514283_2_1">Stock Options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockOptionsMember" xlink:to="us-gaap_StockOptionsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_StockWarrantsTextBlock" xlink:label="galt_StockWarrantsTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_StockWarrantsTextBlock_lbl" xml:lang="en-US" id="id_1168147_538825_3_1">Stock Warrants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_StockWarrantsTextBlock_lbl" xml:lang="en-US" id="id_1168147_538825_1_1">Stock Warrants [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_StockWarrantsTextBlock_lbl" xml:lang="en-US" id="id_1168147_538825_2_1">Warrants and Warrant Liabilities</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_StockWarrantsTextBlock" xlink:to="galt_StockWarrantsTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubscriptionRevenue" xlink:label="us-gaap_SubscriptionRevenue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubscriptionRevenue_lbl" xml:lang="en-US" id="id_1168147_502372_1_1">Subscription Revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubscriptionRevenue_lbl" xml:lang="en-US" id="id_1168147_502372_2_1">Receipt of subscription receivable</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubscriptionRevenue" xlink:to="us-gaap_SubscriptionRevenue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="us-gaap_SubsequentEventLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xml:lang="en-US" id="id_1168147_513107_1_1">Subsequent Event [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventLineItems_lbl" xml:lang="en-US" id="id_1168147_513107_2_1">Subsequent Event [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventLineItems" xlink:to="us-gaap_SubsequentEventLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="us-gaap_SubsequentEventMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US" id="id_1168147_511390_1_1">Subsequent Event [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US" id="id_1168147_511390_2_1">Subsequent Event</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="us-gaap_SubsequentEventsTextBlock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xml:lang="en-US" id="id_1168147_507047_1_1">Subsequent Events [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xml:lang="en-US" id="id_1168147_507047_2_1">Subsequent Events</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="us-gaap_SubsequentEventTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTable_lbl" xml:lang="en-US" id="id_1168147_504646_1_1">Subsequent Event [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventTable_lbl" xml:lang="en-US" id="id_1168147_504646_2_1">Subsequent Event [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTable" xlink:to="us-gaap_SubsequentEventTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="us-gaap_SubsequentEventTypeAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US" id="id_1168147_506663_1_1">Subsequent Event Type [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US" id="id_1168147_506663_2_1">Subsequent Event Type [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="us-gaap_SubsequentEventTypeDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xml:lang="en-US" id="id_1168147_510912_1_1">Subsequent Event Type [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xml:lang="en-US" id="id_1168147_510912_2_1">Subsequent Event Type [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeDomain" xlink:to="us-gaap_SubsequentEventTypeDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="us-gaap_SubsidiarySaleOfStockAxis"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xml:lang="en-US" id="id_1168147_512768_1_1">Subsidiary Sale Of Stock [Axis]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xml:lang="en-US" id="id_1168147_512768_2_1">Subsidiary, Sale of Stock [Axis]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_SupplementalDividendsOnConvertiblePreferredStock" xlink:label="galt_SupplementalDividendsOnConvertiblePreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_SupplementalDividendsOnConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519903_3_1">Supplemental Dividends on ESOP convertible preferred stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_SupplementalDividendsOnConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519903_1_1">Supplemental Dividends On Convertible Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_SupplementalDividendsOnConvertiblePreferredStock_lbl" xml:lang="en-US" id="id_1168147_519903_2_1">Payment of preferred stock dividends in common stock</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_SupplementalDividendsOnConvertiblePreferredStock" xlink:to="galt_SupplementalDividendsOnConvertiblePreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TaxBenefitFromStockOptionsExercised1" xlink:label="us-gaap_TaxBenefitFromStockOptionsExercised1"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TaxBenefitFromStockOptionsExercised1_lbl" xml:lang="en-US" id="id_1168147_512661_1_1">Tax Benefit From Stock Options Exercised 1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TaxBenefitFromStockOptionsExercised1_lbl" xml:lang="en-US" id="id_1168147_512661_2_1">Benefits related to stock options</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TaxBenefitFromStockOptionsExercised1" xlink:to="us-gaap_TaxBenefitFromStockOptionsExercised1_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xml:lang="en-US" id="id_1168147_500128_1_1">Temporary Equity Accretion To Redemption Value Adjustment</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl" xml:lang="en-US" id="id_1168147_500128_8_1">Accretion of beneficial conversion feature for Series B-2</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment" xlink:to="us-gaap_TemporaryEquityAccretionToRedemptionValueAdjustment_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquityByClassOfStockTable" xlink:label="us-gaap_TemporaryEquityByClassOfStockTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityByClassOfStockTable_lbl" xml:lang="en-US" id="id_1168147_499090_1_1">Temporary Equity By Class Of Stock [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityByClassOfStockTable_lbl" xml:lang="en-US" id="id_1168147_499090_2_1">Temporary Equity, by Class of Stock [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityByClassOfStockTable" xlink:to="us-gaap_TemporaryEquityByClassOfStockTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xml:lang="en-US" id="id_1168147_514842_1_1">Temporary Equity Carrying Amount Attributable To Parent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl" xml:lang="en-US" id="id_1168147_514842_2_1">Convertible preferred stock, value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityCarryingAmountAttributableToParent" xlink:to="us-gaap_TemporaryEquityCarryingAmountAttributableToParent_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquityLiquidationPreference" xlink:label="us-gaap_TemporaryEquityLiquidationPreference"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityLiquidationPreference_lbl" xml:lang="en-US" id="id_1168147_505146_1_1">Temporary Equity Liquidation Preference</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityLiquidationPreference_lbl" xml:lang="en-US" id="id_1168147_505146_2_1">Convertible preferred stock, liquidation value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityLiquidationPreference" xlink:to="us-gaap_TemporaryEquityLiquidationPreference_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquityRedemptionValue" xlink:label="us-gaap_TemporaryEquityRedemptionValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquityRedemptionValue_lbl" xml:lang="en-US" id="id_1168147_512584_1_1">Temporary Equity Redemption Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityRedemptionValue_lbl" xml:lang="en-US" id="id_1168147_512584_2_1">Convertible preferred stock, redemption value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityRedemptionValue" xlink:to="us-gaap_TemporaryEquityRedemptionValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquitySharesAuthorized" xlink:label="us-gaap_TemporaryEquitySharesAuthorized"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_512193_1_1">Temporary Equity Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquitySharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_512193_2_1">Convertible preferred stock, shares authorized</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesAuthorized" xlink:to="us-gaap_TemporaryEquitySharesAuthorized_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquitySharesIssued" xlink:label="us-gaap_TemporaryEquitySharesIssued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xml:lang="en-US" id="id_1168147_508879_1_1">Temporary Equity Shares Issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquitySharesIssued_lbl" xml:lang="en-US" id="id_1168147_508879_2_1">Convertible preferred stock, issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesIssued" xlink:to="us-gaap_TemporaryEquitySharesIssued_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TemporaryEquitySharesOutstanding" xlink:label="us-gaap_TemporaryEquitySharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_506229_1_1">Temporary Equity Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquitySharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_506229_2_1">Convertible preferred stock, outstanding</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquitySharesOutstanding" xlink:to="us-gaap_TemporaryEquitySharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_TerminationNoticePeriod" xlink:label="galt_TerminationNoticePeriod"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_TerminationNoticePeriod_lbl" xml:lang="en-US" id="id_1168147_529877_3_1">Termination Notice Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_TerminationNoticePeriod_lbl" xml:lang="en-US" id="id_1168147_529877_1_1">Termination Notice Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_TerminationNoticePeriod_lbl" xml:lang="en-US" id="id_1168147_529877_2_1">Termination notice period</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_TerminationNoticePeriod" xlink:to="galt_TerminationNoticePeriod_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TextBlockAbstract" xlink:label="us-gaap_TextBlockAbstract"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TextBlockAbstract_lbl" xml:lang="en-US" id="id_1168147_499125_1_1">Text Block [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TextBlockAbstract_lbl" xml:lang="en-US" id="id_1168147_499125_2_1">Text Block [Abstract]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TextBlockAbstract" xlink:to="us-gaap_TextBlockAbstract_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ThirdConsultingAgreementMember" xlink:label="galt_ThirdConsultingAgreementMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ThirdConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610125_3_1">Third Consulting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ThirdConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610125_1_1">Third Consulting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ThirdConsultingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_610125_2_1">Third Consulting Agreement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ThirdConsultingAgreementMember" xlink:to="galt_ThirdConsultingAgreementMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xml:lang="en-US" id="id_1168147_502975_1_1">Title Of Individual With Relationship To Entity [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xml:lang="en-US" id="id_1168147_502975_2_1">Title of Individual with Relationship to Entity [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2012/dei-2012-01-31.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US" id="id_1168147_497703_1_1">Trading Symbol</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US" id="id_1168147_497703_2_1">Trading Symbol</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_TransactionOneMember" xlink:label="galt_TransactionOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_TransactionOneMember_lbl" xml:lang="en-US" id="id_1168147_517123_3_1">Transaction 01 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_TransactionOneMember_lbl" xml:lang="en-US" id="id_1168147_517123_1_1">Transaction One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_TransactionOneMember_lbl" xml:lang="en-US" id="id_1168147_517123_2_1">Transaction 01</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_TransactionOneMember" xlink:to="galt_TransactionOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_TransactionThreeMember" xlink:label="galt_TransactionThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_TransactionThreeMember_lbl" xml:lang="en-US" id="id_1168147_517125_3_1">Transaction 03 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_TransactionThreeMember_lbl" xml:lang="en-US" id="id_1168147_517125_1_1">Transaction Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_TransactionThreeMember_lbl" xml:lang="en-US" id="id_1168147_517125_2_1">Transaction 03</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_TransactionThreeMember" xlink:to="galt_TransactionThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_TransactionTwoMember" xlink:label="galt_TransactionTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_TransactionTwoMember_lbl" xml:lang="en-US" id="id_1168147_517124_3_1">Transaction 02 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_TransactionTwoMember_lbl" xml:lang="en-US" id="id_1168147_517124_1_1">Transaction Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_TransactionTwoMember_lbl" xml:lang="en-US" id="id_1168147_517124_2_1">Transaction 02</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_TransactionTwoMember" xlink:to="galt_TransactionTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_TwentyTwelveOfferingPlacementAgentWarrantsMember" xlink:label="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678630_3_1">Twenty Twelve Offering Placement Agent Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678630_1_1">Twenty Twelve Offering Placement Agent Warrants [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember_lbl" xml:lang="en-US" id="id_1168147_678630_2_1">Twenty Twelve Offering Placement Agent Warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember" xlink:to="galt_TwentyTwelveOfferingPlacementAgentWarrantsMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_TypeOfDeferredCompensationDomain" xlink:label="us-gaap_TypeOfDeferredCompensationDomain"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TypeOfDeferredCompensationDomain_lbl" xml:lang="en-US" id="id_1168147_507665_1_1">Type Of Deferred Compensation [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TypeOfDeferredCompensationDomain_lbl" xml:lang="en-US" id="id_1168147_507665_2_1">Type of Deferred Compensation, All Types [Domain]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TypeOfDeferredCompensationDomain" xlink:to="us-gaap_TypeOfDeferredCompensationDomain_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UnderwritingAgreementMember" xlink:label="galt_UnderwritingAgreementMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UnderwritingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_547416_3_1">Underwriting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UnderwritingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_547416_1_1">Underwriting Agreement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UnderwritingAgreementMember_lbl" xml:lang="en-US" id="id_1168147_547416_2_1">Underwriting Agreement</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UnderwritingAgreementMember" xlink:to="galt_UnderwritingAgreementMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UndesignatedCapitalStockNoParValue" xlink:label="galt_UndesignatedCapitalStockNoParValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UndesignatedCapitalStockNoParValue_lbl" xml:lang="en-US" id="id_1168147_539674_3_1">Undesignated Capital Stock, No Par Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UndesignatedCapitalStockNoParValue_lbl" xml:lang="en-US" id="id_1168147_539674_1_1">Undesignated Capital Stock No Par Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UndesignatedCapitalStockNoParValue_lbl" xml:lang="en-US" id="id_1168147_539674_2_1">Undesignated stock, par value</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UndesignatedCapitalStockNoParValue" xlink:to="galt_UndesignatedCapitalStockNoParValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UndesignatedCapitalStockSharesAuthorized" xlink:label="galt_UndesignatedCapitalStockSharesAuthorized"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UndesignatedCapitalStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_528758_3_1">Undesignated Capital Stock, Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UndesignatedCapitalStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_528758_1_1">Undesignated Capital Stock Shares Authorized</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UndesignatedCapitalStockSharesAuthorized_lbl" xml:lang="en-US" id="id_1168147_528758_2_1">Undesignated stock, shares authorized</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UndesignatedCapitalStockSharesAuthorized" xlink:to="galt_UndesignatedCapitalStockSharesAuthorized_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UndesignatedCapitalStockSharesAuthorizedButUnissued" xlink:label="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued_lbl" xml:lang="en-US" id="id_1168147_621848_3_1">Undesignated Capital Stock, Shares Authorized, but Unissued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued_lbl" xml:lang="en-US" id="id_1168147_621848_1_1">Undesignated Capital Stock Shares Authorized But Unissued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued_lbl" xml:lang="en-US" id="id_1168147_621848_2_1">Undesignated stock, undesignated</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued" xlink:to="galt_UndesignatedCapitalStockSharesAuthorizedButUnissued_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UndesignatedCapitalStockSharesOutstanding" xlink:label="galt_UndesignatedCapitalStockSharesOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UndesignatedCapitalStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_528760_3_1">Undesignated Capital Stock, Shares, Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UndesignatedCapitalStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_528760_1_1">Undesignated Capital Stock Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UndesignatedCapitalStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_528760_2_1">Undesignated stock, designated</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="galt_UndesignatedCapitalStockSharesOutstanding_lbl" xml:lang="en-US" id="id_1168147_528760_12_1">Undesignated stock, shares designated</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UndesignatedCapitalStockSharesOutstanding" xlink:to="galt_UndesignatedCapitalStockSharesOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UndesignatedCapitalStockValue" xlink:label="galt_UndesignatedCapitalStockValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UndesignatedCapitalStockValue_lbl" xml:lang="en-US" id="id_1168147_523782_3_1">Undesignated Capital Stock, Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UndesignatedCapitalStockValue_lbl" xml:lang="en-US" id="id_1168147_523782_1_1">Undesignated Capital Stock Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UndesignatedCapitalStockValue_lbl" xml:lang="en-US" id="id_1168147_523782_2_1">Undesignated stock, $0.01 par value; 20,000,000 shares authorized at December 31, 2012 and 2011, 8,001,000 shares designated at December 31, 2012 and 2011</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UndesignatedCapitalStockValue" xlink:to="galt_UndesignatedCapitalStockValue_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UnitsIssuedDuringPeriodUnitsNewIssues" xlink:label="galt_UnitsIssuedDuringPeriodUnitsNewIssues"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UnitsIssuedDuringPeriodUnitsNewIssues_lbl" xml:lang="en-US" id="id_1168147_528561_3_1">Units Issued During Period, Units, New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UnitsIssuedDuringPeriodUnitsNewIssues_lbl" xml:lang="en-US" id="id_1168147_528561_1_1">Units Issued During Period Units New Issues</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UnitsIssuedDuringPeriodUnitsNewIssues_lbl" xml:lang="en-US" id="id_1168147_528561_2_1">Units issued</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UnitsIssuedDuringPeriodUnitsNewIssues" xlink:to="galt_UnitsIssuedDuringPeriodUnitsNewIssues_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_UnrealizedGainLossInDebtInstrumentFairValue" xlink:label="galt_UnrealizedGainLossInDebtInstrumentFairValue"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_UnrealizedGainLossInDebtInstrumentFairValue_lbl" xml:lang="en-US" id="id_1168147_521579_3_1">Unrealized Gain (Loss) In Debt Instrument Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_UnrealizedGainLossInDebtInstrumentFairValue_lbl" xml:lang="en-US" id="id_1168147_521579_1_1">Unrealized Gain Loss In Debt Instrument Fair Value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_UnrealizedGainLossInDebtInstrumentFairValue_lbl" xml:lang="en-US" id="id_1168147_521579_2_1">Change in fair value of convertible debt instrument</label>
    <label xlink:type="resource" xlink:role="http://xbrl.us/us-gaap/role/label/negated" xlink:label="galt_UnrealizedGainLossInDebtInstrumentFairValue_lbl" xml:lang="en-US" id="id_1168147_521579_8_1">Change in fair value of convertible debt instrument</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_UnrealizedGainLossInDebtInstrumentFairValue" xlink:to="galt_UnrealizedGainLossInDebtInstrumentFairValue_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="us-gaap_UnrecognizedTaxBenefits"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xml:lang="en-US" id="id_1168147_506213_1_1">Unrecognized Tax Benefits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xml:lang="en-US" id="id_1168147_506213_2_1">Unrecognized tax benefits</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefits" xlink:to="us-gaap_UnrecognizedTaxBenefits_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:label="us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_lbl" xml:lang="en-US" id="id_1168147_504240_1_1">Unrecognized Tax Benefits That Would Impact Effective Tax Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_lbl" xml:lang="en-US" id="id_1168147_504240_2_1">Unrecognized tax benefits which affects effective tax rate</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate" xlink:to="us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US" id="id_1168147_513922_1_1">Use Of Estimates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US" id="id_1168147_513922_2_1">Use of Estimates</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_ValueOfBeneficialConversionFeatureOfPreferredStock" xlink:label="galt_ValueOfBeneficialConversionFeatureOfPreferredStock"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_ValueOfBeneficialConversionFeatureOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_522760_3_1">Value Of Beneficial Conversion Feature Of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_ValueOfBeneficialConversionFeatureOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_522760_1_1">Value Of Beneficial Conversion Feature Of Preferred Stock</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_ValueOfBeneficialConversionFeatureOfPreferredStock_lbl" xml:lang="en-US" id="id_1168147_522760_2_1">Beneficial conversion feature</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_ValueOfBeneficialConversionFeatureOfPreferredStock" xlink:to="galt_ValueOfBeneficialConversionFeatureOfPreferredStock_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_VestingScenarioOneMember" xlink:label="galt_VestingScenarioOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_VestingScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_599318_3_1">Vesting Scenario One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_VestingScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_599318_1_1">Vesting Scenario One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_VestingScenarioOneMember_lbl" xml:lang="en-US" id="id_1168147_599318_2_1">Vesting Scenario One</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_VestingScenarioOneMember" xlink:to="galt_VestingScenarioOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_VestingScenarioTwoMember" xlink:label="galt_VestingScenarioTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_VestingScenarioTwoMember_lbl" xml:lang="en-US" id="id_1168147_599319_3_1">Vesting Scenario Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_VestingScenarioTwoMember_lbl" xml:lang="en-US" id="id_1168147_599319_1_1">Vesting Scenario Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_VestingScenarioTwoMember_lbl" xml:lang="en-US" id="id_1168147_599319_2_1">Vesting Scenario Two</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_VestingScenarioTwoMember" xlink:to="galt_VestingScenarioTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantEightMember" xlink:label="galt_WarrantEightMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantEightMember_lbl" xml:lang="en-US" id="id_1168147_517827_3_1">Warrant 8 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantEightMember_lbl" xml:lang="en-US" id="id_1168147_517827_1_1">Warrant Eight [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantEightMember_lbl" xml:lang="en-US" id="id_1168147_517827_2_1">Warrant 8</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantEightMember" xlink:to="galt_WarrantEightMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantElevenMember" xlink:label="galt_WarrantElevenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantElevenMember_lbl" xml:lang="en-US" id="id_1168147_537560_3_1">Warrant Eleven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantElevenMember_lbl" xml:lang="en-US" id="id_1168147_537560_1_1">Warrant Eleven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantElevenMember_lbl" xml:lang="en-US" id="id_1168147_537560_2_1">Warrant Eleven</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantElevenMember" xlink:to="galt_WarrantElevenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantExpirationDate" xlink:label="galt_WarrantExpirationDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantExpirationDate_lbl" xml:lang="en-US" id="id_1168147_529278_3_1">Warrant, Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantExpirationDate_lbl" xml:lang="en-US" id="id_1168147_529278_1_1">Warrant Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantExpirationDate_lbl" xml:lang="en-US" id="id_1168147_529278_2_1">Expiration Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="galt_WarrantExpirationDate_lbl" xml:lang="en-US" id="id_1168147_529278_12_1">Expiration date of warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantExpirationDate" xlink:to="galt_WarrantExpirationDate_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantFiveMember" xlink:label="galt_WarrantFiveMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantFiveMember_lbl" xml:lang="en-US" id="id_1168147_517824_3_1">Warrant 5 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantFiveMember_lbl" xml:lang="en-US" id="id_1168147_517824_1_1">Warrant Five [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantFiveMember_lbl" xml:lang="en-US" id="id_1168147_517824_2_1">Warrant 5</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantFiveMember" xlink:to="galt_WarrantFiveMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantFourMember" xlink:label="galt_WarrantFourMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantFourMember_lbl" xml:lang="en-US" id="id_1168147_517823_3_1">Warrant 4 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantFourMember_lbl" xml:lang="en-US" id="id_1168147_517823_1_1">Warrant Four [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantFourMember_lbl" xml:lang="en-US" id="id_1168147_517823_2_1">Warrant 4</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantFourMember" xlink:to="galt_WarrantFourMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantIssueDate" xlink:label="galt_WarrantIssueDate"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantIssueDate_lbl" xml:lang="en-US" id="id_1168147_529289_3_1">Warrant Issue Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantIssueDate_lbl" xml:lang="en-US" id="id_1168147_529289_1_1">Warrant Issue Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantIssueDate_lbl" xml:lang="en-US" id="id_1168147_529289_2_1">Warrant issuance date</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantIssueDate" xlink:to="galt_WarrantIssueDate_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantLiabilitiesFairValueDisclosure" xlink:label="galt_WarrantLiabilitiesFairValueDisclosure"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_542754_3_1">Warrant Liabilities, Fair Value Disclosure</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_542754_1_1">Warrant Liabilities Fair Value Disclosure</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="galt_WarrantLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_542754_4_1">Ending Balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="galt_WarrantLiabilitiesFairValueDisclosure_lbl" xml:lang="en-US" id="id_1168147_542754_5_1">Beginning Balance</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantLiabilitiesFairValueDisclosure" xlink:to="galt_WarrantLiabilitiesFairValueDisclosure_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WarrantMember" xlink:label="us-gaap_WarrantMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US" id="id_1168147_507958_1_1">Warrant [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US" id="id_1168147_507958_2_1">Warrant</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantMember" xlink:to="us-gaap_WarrantMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantOneMember" xlink:label="galt_WarrantOneMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantOneMember_lbl" xml:lang="en-US" id="id_1168147_517820_3_1">Warrant 1 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantOneMember_lbl" xml:lang="en-US" id="id_1168147_517820_1_1">Warrant One [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantOneMember_lbl" xml:lang="en-US" id="id_1168147_517820_2_1">Warrant one</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantOneMember" xlink:to="galt_WarrantOneMember_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WarrantsAndRightsOutstanding" xlink:label="us-gaap_WarrantsAndRightsOutstanding"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xml:lang="en-US" id="id_1168147_512045_1_1">Warrants And Rights Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WarrantsAndRightsOutstanding_lbl" xml:lang="en-US" id="id_1168147_512045_2_1">Fair value of warrants</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstanding" xlink:to="us-gaap_WarrantsAndRightsOutstanding_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantSevenMember" xlink:label="galt_WarrantSevenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantSevenMember_lbl" xml:lang="en-US" id="id_1168147_517826_3_1">Warrant 7 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantSevenMember_lbl" xml:lang="en-US" id="id_1168147_517826_1_1">Warrant Seven [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantSevenMember_lbl" xml:lang="en-US" id="id_1168147_517826_2_1">Warrant 7</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantSevenMember" xlink:to="galt_WarrantSevenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantsExpiredWithoutExercise" xlink:label="galt_WarrantsExpiredWithoutExercise"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595663_3_1">Warrants Expired Without Exercise</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595663_1_1">Warrants Expired Without Exercise</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantsExpiredWithoutExercise_lbl" xml:lang="en-US" id="id_1168147_595663_2_1">Warrants expired unexercised</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantsExpiredWithoutExercise" xlink:to="galt_WarrantsExpiredWithoutExercise_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantSixMember" xlink:label="galt_WarrantSixMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantSixMember_lbl" xml:lang="en-US" id="id_1168147_517825_3_1">Warrant 6 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantSixMember_lbl" xml:lang="en-US" id="id_1168147_517825_1_1">Warrant Six [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantSixMember_lbl" xml:lang="en-US" id="id_1168147_517825_2_1">Warrant 6</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantSixMember" xlink:to="galt_WarrantSixMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantThirteenMember" xlink:label="galt_WarrantThirteenMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantThirteenMember_lbl" xml:lang="en-US" id="id_1168147_588296_3_1">Warrant Thirteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantThirteenMember_lbl" xml:lang="en-US" id="id_1168147_588296_1_1">Warrant Thirteen [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantThirteenMember_lbl" xml:lang="en-US" id="id_1168147_588296_2_1">Warrant Thirteen</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantThirteenMember" xlink:to="galt_WarrantThirteenMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantThreeMember" xlink:label="galt_WarrantThreeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantThreeMember_lbl" xml:lang="en-US" id="id_1168147_517822_3_1">Warrant 3 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantThreeMember_lbl" xml:lang="en-US" id="id_1168147_517822_1_1">Warrant Three [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantThreeMember_lbl" xml:lang="en-US" id="id_1168147_517822_2_1">Warrant three</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantThreeMember" xlink:to="galt_WarrantThreeMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantTwelveMember" xlink:label="galt_WarrantTwelveMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantTwelveMember_lbl" xml:lang="en-US" id="id_1168147_537561_3_1">Warrant Twelve [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantTwelveMember_lbl" xml:lang="en-US" id="id_1168147_537561_1_1">Warrant Twelve [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantTwelveMember_lbl" xml:lang="en-US" id="id_1168147_537561_2_1">Warrant Twelve</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantTwelveMember" xlink:to="galt_WarrantTwelveMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantTwoMember" xlink:label="galt_WarrantTwoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantTwoMember_lbl" xml:lang="en-US" id="id_1168147_517821_3_1">Warrant 2 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantTwoMember_lbl" xml:lang="en-US" id="id_1168147_517821_1_1">Warrant Two [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantTwoMember_lbl" xml:lang="en-US" id="id_1168147_517821_2_1">Warrant two</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantTwoMember" xlink:to="galt_WarrantTwoMember_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantyLiabilityLineItems" xlink:label="galt_WarrantyLiabilityLineItems"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantyLiabilityLineItems_lbl" xml:lang="en-US" id="id_1168147_518995_3_1">Warranty Liability [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantyLiabilityLineItems_lbl" xml:lang="en-US" id="id_1168147_518995_1_1">Warranty Liability [Line Items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantyLiabilityLineItems_lbl" xml:lang="en-US" id="id_1168147_518995_2_1">Warranty Liability [Line Items]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantyLiabilityLineItems" xlink:to="galt_WarrantyLiabilityLineItems_lbl"/>
    <loc xlink:type="locator" xlink:href="galt-20121231.xsd#galt_WarrantyLiabilityTable" xlink:label="galt_WarrantyLiabilityTable"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="galt_WarrantyLiabilityTable_lbl" xml:lang="en-US" id="id_1168147_541669_3_1">Warranty Liability [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="galt_WarrantyLiabilityTable_lbl" xml:lang="en-US" id="id_1168147_541669_1_1">Warranty Liability [Table]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="galt_WarrantyLiabilityTable_lbl" xml:lang="en-US" id="id_1168147_541669_2_1">Warranty Liability [Table]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="galt_WarrantyLiabilityTable" xlink:to="galt_WarrantyLiabilityTable_lbl"/>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2012/elts/us-gaap-2012-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_512414_1_1">Weighted Average Number Of Share Outstanding Basic And Diluted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_512414_2_1">Shares used in computing basic and diluted net loss per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xml:lang="en-US" id="id_1168147_512414_12_1">Weighted average common shares outstanding-basic and diluted</label>
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