INR monitoring
4 interactions related to INR monitoring
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.
vitamin d + vitamin k2
Vitamin D and vitamin K2 act synergistically on calcium metabolism: vitamin D increases calcium absorption while vitamin K2 activates osteocalcin and matrix Gla protein to direct calcium into bone and away from soft tissue. The main caution is for people taking warfarin.
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.
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.