Sulfamethoxazole And Trimethoprim + Warfarin Interaction

Majorinteraction on record

Description

BACTRIM may prolong prothrombin time in patients receiving warfarin. Sulfamethoxazole inhibits CYP2C9, increasing warfarin levels.

Mechanism

CYP2C9 inhibition

Source: NLP:sulfamethoxazole and trimethoprim