Does the co-administration of other medications with warfarin alter the risk of bleeding or thromboembolic outcomes in patients taking warfarin?
Certain drug-drug interactions with warfarin increase bleeding risk, highlighting the need for careful medication management, though PPI co-administration is protective against upper GI bleeding.
This review found low to moderate certainty evidence supporting the interaction between warfarin and a small group of medications, which result in increased bleeding risk. PPIs are associated with reduced hospitalization for upper GI bleeding for patients taking warfarin. Further studies are required to better understand drug-drug interactions leading to thromboembolic outcomes or death.
Wang et al. (Fri,) studied this question.