Warfarin is one medication prescribed to people who are at higher risks of forming dangerous blood clots.

While general blood clotting is good, helping the body to prevent or stop bleeding, harmful blood clots can cause heart attacks, stroke, deep vein thrombosis or pulmonary embolism.1 As an anticoagulant, warfarin works by interfering with the body’s clot forming process, not by “thinning” the blood but by increasing the time it takes for blood to clot. One of the side effects that people on warfarin need to be aware of is their higher risk of developing bruises.

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