Coumadin
3 interactions related to Coumadin
Warfarin + Vitamin K
Warfarin and vitamin K have directly opposing effects on blood clotting. Warfarin works by interfering with how the liver recycles vitamin K, so changes in vitamin K intake can push warfarin's effect up or down and alter the INR.
warfarinvitamin Kwarfarin interactionCoumadinINR monitoringblood thinner food interactionsvitamin K supplementsleafy greens and warfarinanticoagulant safety
blood thinner + vitamin e
High-dose vitamin E supplements can add to the bleeding risk of anticoagulant and antiplatelet medications by inhibiting platelet aggregation and antagonizing vitamin K–dependent clotting factors.
blood thinnervitamin ewarfarinCoumadinINR monitoringdrug supplement interactionbleeding risk supplementsanticoagulant safetyblood thinner safety
warfarin + fish oil
Fish oil may modestly add to bleeding risk when combined with warfarin, though most people on stable doses show little change in INR.
warfarinfish oilomega-3warfarin interactionINR monitoringbleeding risk supplementsblood thinner safetydrug supplement interactionCoumadin