Warfarin Oral

Warfarin sodium (Coumadin®, Jantoven®) is a prescription anticoagulant approved for the prevention and treatment of blood clots due to various causes. There are two different forms of warfarin: oral tablets and injection (although this form is rarely used). The medication is typically taken by mouth once a day.
Warfarin does not actually "dissolve" or break down blood clots (only special "clot buster" medications that must be given in the hospital can do this). Rather, it prevents them from forming. When used to treat a blood clot, warfarin keeps clot formation in check, allowing the body's natural processes to break it down.
Just like any medicine, warfarin can cause side effects, which can be dangerous. The risk of most dangerous side effects can be reduced by careful monitoring. Possible side effects include but are not limited to:
  • Bleeding, including dangerous internal bleeding
  • Easy bruising
  • "Purple toe syndrome"
  • Hair loss.
(Click Warfarin for tips on when and how to take warfarin oral tablets, how the medication works, and warnings and precautions associated with its use.)
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