Harvard Heart Letter

Should you stop anti-clotting drugs before a procedure?

Because many factors are involved, make sure your doctors talk to each other if you need an invasive test or procedure. Millions of people with cardiovascular disease take drugs that help prevent blood clots, which can lodge in a vessel and choke off part of the blood supply to a leg, a lung, or the brain. These potentially lifesaving medications, known generally as anticoagulants, include warfarin (Coumadin) and a class of drugs…

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