25.關於 anticoagulants 之藥品交互作用,下列何者正確?
(A)warfarin-fluconazole:decrease INR
(B)warfarin-aspirin:increase bleeding risk
(C)dabigatran-dronedarone:increase dronedarone concentration
(D)rivaroxaban-phenytoin:increase rivaroxaban concentration
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統計: A(3), B(71), C(4), D(2), E(0) #3972614
統計: A(3), B(71), C(4), D(2), E(0) #3972614
詳解 (共 6 筆)
#7460558
(A) warfarin-fluconazole:decrease INR (increase INR,-conazole類藥物是CYP3A4抑制劑)
(B) warfarin-aspirin:increase bleeding risk
(C) dabigatran-dronedarone:increase dronedarone concentration (increase dabigatran concentration,dronedarone是P-gp抑制劑,也是CYP3A4抑制劑)
(D) rivaroxaban-phenytoin:increase rivaroxaban concentration(decreased rivaroxaban concentration,Phenytoin是CYP3A4誘導劑)
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補充:DOACs代謝
| Dabigatran | Rivaroxaban | Apixaban | Edoxaban | |
| CYP3A4受質 | X | O | O | O |
| P-gp受質 | O | O | O | O |
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#7648849
(A)Fluconazole為2C9抑制劑,會抑制warfarin代謝而提升血中濃度,進而延長INR
(C)Dronedarone為P-gp抑制劑,dabigatran為P-gp受質,故同時使用會使dabigatran血中濃度上升
(D)Phenytoin為3A4誘導劑,而rivaroxaban會透過3A4代謝,故rivaroxaban會降低血中濃度
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