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