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  <xs:element id="amgn_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableValueOfAcquirerReplacementAwards" abstract="false" name="BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuableValueOfAcquirerReplacementAwards" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="amgn_AccumulatedOtherAdjustmentAttributabletoParentMember" abstract="true" name="AccumulatedOtherAdjustmentAttributabletoParentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amgn_KyprolisMember" abstract="true" name="KyprolisMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amgn_FairValuesOfAvailableForSaleInvestmentsByClassificationInConsolidatedBalanceSheetsTableTextBlock" abstract="false" name="FairValuesOfAvailableForSaleInvestmentsByClassificationInConsolidatedBalanceSheetsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
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  <xs:element id="amgn_ThreePointThreeSevenFivePercentNotesDue2050Member" abstract="true" name="ThreePointThreeSevenFivePercentNotesDue2050Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="amgn_ProposedAdditionalIncomeTax" abstract="false" name="ProposedAdditionalIncomeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amgn_RepatriationTaxOnProposedAdditionalTax20132015" abstract="false" name="RepatriationTaxOnProposedAdditionalTax20132015" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amgn_BasicAndDilutedEarningPerShareAbstract" abstract="true" name="BasicAndDilutedEarningPerShareAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="amgn_PenaltiesOnProposedAdditionalIncomeTax20132105" abstract="false" name="PenaltiesOnProposedAdditionalIncomeTax20132105" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="amgn_FourPointNineFivePercentNotesDue2041Member" abstract="true" name="FourPointNineFivePercentNotesDue2041Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="amgn_KRYSTEXXAMember" abstract="true" name="KRYSTEXXAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="amgn_SecuredOvernightFinancingRateSOFRMember" abstract="true" name="SecuredOvernightFinancingRateSOFRMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
