Many: This is a tough question to answer in a short space. The main problem with Coumadin (warfarin) is bleeding; however clotting can occur with the drug is started. Allergies can also occur. Many drugs and foods interact with coumadin (warfarin). It is important to review your medications, the expected benefits and side effects with your prescribing physician so that the answer can be tailored to your specific situation.
Answered 6/24/2014
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