What drug interactions may occur with warfarin? 2What drugs alter prothrombin time by interacting with warfarin levels (pharmacokinetics)? 3What drugs alter prothrombin time, but not by changing warfarin levels (pharmacodynamics)?

• 哪些药物可与华法林相互影响?2哪些药物可通过影响华法林水平改变凝血酶原时间(药代动力学角度)?3哪些药物不是通过影响华法林水平而改变凝血酶原时间(药效动力学角度)?