คำอธิบาย
Hydroxychloroquine may potentiate the anticoagulant effect of warfarin, raising INR and the risk of bleeding complications.
กลไก
The mechanism is not fully established; proposed mechanisms include inhibition of CYP2C9 and CYP3A4, as well as independent antiplatelet properties of hydroxychloroquine.
ความสำคัญทางคลินิก
Several case reports and pharmacovigilance analyses document significant INR elevation and bleeding events when hydroxychloroquine is added to warfarin.
การจัดการ
Monitor INR frequently when starting hydroxychloroquine in warfarin-treated patients; adjust warfarin dose as needed.
ข้อจำกัดความรับผิดชอบทางการแพทย์
This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.