Coumadin , also known as warfarin, is an anticoagulant used to prevent and treat blood clots that occur in the lungs or veins. It is normally prescribed for patients who have an irregular heartbeat or after heart valve replacement surgery.
Coumadin works by blocking the production of substances that cause clots.
This medicine comes as an oral tablet taken once per day as prescribed by your doctor.
Common side effects of Coumadin are skin rash, headache, diarrhea, upset stomach and fever.
Coumadin may also be used to decrease the risk of stroke and problems caused by heart attack, as well as treat other medical conditions as suggested by your doctor.