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  <xsd:element id="amph_IndefiniteLivedIntangibleAssetsIncludingGoodwillNet" name="IndefiniteLivedIntangibleAssetsIncludingGoodwillNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="debit" />
  <xsd:element id="amph_NanjingLetopMedicalTechnologyCo.Ltd.Member" name="NanjingLetopMedicalTechnologyCo.Ltd.Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfExcludedSecurities" name="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceOfExcludedSecurities" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_AnpMember" name="AnpMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_NaloxoneMember" name="NaloxoneMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_PhytonadioneMember" name="PhytonadioneMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_EpinephrineMember" name="EpinephrineMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_LidocaineMember" name="LidocaineMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_OtherFinishedPharmaceuticalProductsMember" name="OtherFinishedPharmaceuticalProductsMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_ProceedsFromPaymentsForIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsNetOfWithholdingTaxPayments" name="ProceedsFromPaymentsForIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsNetOfWithholdingTaxPayments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="amph_MortgagePayableDueJune2027Member" name="MortgagePayableDueJune2027Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_IncreaseDecreaseInIncomeTaxRefundDepositsAndPayable" name="IncreaseDecreaseInIncomeTaxRefundDepositsAndPayable" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="amph_AccruedCustomerFeesAndRebates" name="AccruedCustomerFeesAndRebates" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="amph_PrimatenemistMember" name="PrimatenemistMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_FrenchGovernmentLoan4DueDecember2026Member" name="FrenchGovernmentLoan4DueDecember2026Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_OperatingLeaseRightOfUseAssetsAndLiabilitiesNet" name="OperatingLeaseRightOfUseAssetsAndLiabilitiesNet" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="amph_NoncashOperatingLeaseRightOfUseAsset" name="NoncashOperatingLeaseRightOfUseAsset" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <xsd:element id="amph_RestrictedShortTermInvestmentsPolicyTextBlock" name="RestrictedShortTermInvestmentsPolicyTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_AccruedLossOnFirmPurchaseCommitments" name="AccruedLossOnFirmPurchaseCommitments" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <xsd:element id="amph_ScheduleOfDepreciationDepletionAndAmortizationTableTextBlock" name="ScheduleOfDepreciationDepletionAndAmortizationTableTextBlock" nillable="true" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_StockIssuedDuringPeriodValueEquityPlans" name="StockIssuedDuringPeriodValueEquityPlans" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <xsd:element id="amph_ChinaMerchantBankMember" name="ChinaMerchantBankMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_EmployeeStockPurchasePlanWeightedAveragePurchasePriceOfSharesPurchased" name="EmployeeStockPurchasePlanWeightedAveragePurchasePriceOfSharesPurchased" nillable="true" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_LineOfCreditDueAugust2021Member" name="LineOfCreditDueAugust2021Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_NanjingHanxinPharmaceuticalTechnologyCoLtdMember" name="NanjingHanxinPharmaceuticalTechnologyCoLtdMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_RevenuePerformanceObligationPaymentTerms" name="RevenuePerformanceObligationPaymentTerms" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_SettlementOfChargebacksAndRebatesTerms" name="SettlementOfChargebacksAndRebatesTerms" nillable="true" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_GlucagonMember" name="GlucagonMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_OwnershipPercentageAfterSpinoffTransaction" name="OwnershipPercentageAfterSpinoffTransaction" nillable="true" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" />
  <xsd:element id="amph_CapitalOneNationalAssociationMember" name="CapitalOneNationalAssociationMember" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element id="amph_RevlovingLineOfCreditDueAugust2026Member" name="RevlovingLineOfCreditDueAugust2026Member" nillable="true" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="CorporateBondsShortTermMember" id="amph_CorporateBondsShortTermMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ResearchAndDevelopmentServicesMember" id="amph_ResearchAndDevelopmentServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="IncomeLossFromContinuingOperationsAfterIncomeTaxes" id="amph_IncomeLossFromContinuingOperationsAfterIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ScheduleOfProvisionForChargebacksAndRebatesAmountsRecognizedInBalanceSheetTableTextBlock" id="amph_ScheduleOfProvisionForChargebacksAndRebatesAmountsRecognizedInBalanceSheetTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="GainLossFromChangeInFairValueOfInterestRateCashFlowHedges" id="amph_GainLossFromChangeInFairValueOfInterestRateCashFlowHedges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GainLossOnInterestRateSwapsAndForeignCurrencyTransactionsNet" id="amph_GainLossOnInterestRateSwapsAndForeignCurrencyTransactionsNet" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="BaqsimiAcquisitionsMember" id="amph_BaqsimiAcquisitionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WellsFargoBankMember" id="amph_WellsFargoBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TermLoanDueJune2028Member" id="amph_TermLoanDueJune2028Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AcquisitionsPolicyPolicyTextBlock" id="amph_AcquisitionsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DeferredPaymentForAcquisition" id="amph_DeferredPaymentForAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ManufacturingServicesAgreementMember" id="amph_ManufacturingServicesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="TransitionServicesAgreementMember" id="amph_TransitionServicesAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AgreementTerm" id="amph_AgreementTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AssetAcquisitionConsiderationDeferredPaymentIncludingAccruedInterest" id="amph_AssetAcquisitionConsiderationDeferredPaymentIncludingAccruedInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="InterestExpenseAccretionTerm" id="amph_InterestExpenseAccretionTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccruedPaymentsForAssetAcquisitions" id="amph_AccruedPaymentsForAssetAcquisitions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="PaymentsAcquisitionsOfAssets" id="amph_PaymentsAcquisitionsOfAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ConvertibleDebtPolicyTextBlock" id="amph_ConvertibleDebtPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" id="amph_DebtInstrumentPrincipalAmountDenominationForConversionIntoCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="credit" />
  <xsd:element name="DebtInstrumentConvertiblePremiumPercentageOverLastReportedSalePricePercent" id="amph_DebtInstrumentConvertiblePremiumPercentageOverLastReportedSalePricePercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="TwoPercentConvertibleSeniorNotesDueTwoThousandTwentyNineMember" id="amph_TwoPercentConvertibleSeniorNotesDueTwoThousandTwentyNineMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="BaqsimiMember" id="amph_BaqsimiMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EliLillyAndCoMember" id="amph_EliLillyAndCoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DeferredPaymentAccretionInterestExpenseRecognized" id="amph_DeferredPaymentAccretionInterestExpenseRecognized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DebtInstrumentConvertibleThresholdBusinessDaysAfterConsecutiveTradingPeriod" id="amph_DebtInstrumentConvertibleThresholdBusinessDaysAfterConsecutiveTradingPeriod" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentConvertibleThresholdConsecutiveTradingPeriod" id="amph_DebtInstrumentConvertibleThresholdConsecutiveTradingPeriod" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentConvertibleThresholdTradingPriceAsPercentageOfProductOfSalePriceOfCommonStockAndConversionRate" id="amph_DebtInstrumentConvertibleThresholdTradingPriceAsPercentageOfProductOfSalePriceOfCommonStockAndConversionRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="FinishedPharmaceuticalProductsNetRevenuesMember" id="amph_FinishedPharmaceuticalProductsNetRevenuesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="InvestmentInUnconsolidatedAffiliate" id="amph_InvestmentInUnconsolidatedAffiliate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="CencoraMember" id="amph_CencoraMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ICBCBankMember" id="amph_ICBCBankMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="LineOfCreditDueNovember2033Member" id="amph_LineOfCreditDueNovember2033Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentBasisSpreadDiscountOnVariableRate" id="amph_DebtInstrumentBasisSpreadDiscountOnVariableRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="BaqsimiNebMember" id="amph_BaqsimiNebMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="PropertyAndCasualtyClaimMember" id="amph_PropertyAndCasualtyClaimMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
