Most common adverse reactions to warfarin are fatal and nonfatal hemorrhage from any tissue or organ. Despite bleeding complications being the most feared. Find patient medical information for Coumadin Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Aug 25, 2017. Get emergency medical help if you have any of these signs of an allergic reaction hives; difficult breathing; swelling of your face, lips, tongue.
Common and Rare Side Effects for Coumadin Oral - WebMD
The following side effects are associated with Coumadin. Life Threatening Allergic ReactionSevere; Obstruction Of Blood Vessel By An Atheromatous. Jan 6, 2015. Although commonly used to treat blood clots, warfarin Coumadin, Jantoven can have dangerous side effects or interactions that can place you.