Make sure lab personnel and all your doctors know you use this drug. Does Coumadin 6 Mg Tablet interact with other drugs you are taking? Enter your medication into the WebMD interaction checker ...

Vitamin K is used by the body to help blood clot. Warfarin (Coumadin) is used to slow blood clotting. By helping the blood clot, smartweed might decrease the effectiveness of warfarin (Coumadin).

Anticoagulant drugs, such as Coumadin® (warfarin) help to prevent clots from forming in the blood. They are prescribed for patients who are at risk of forming blood clots, including anyone who has ...