Anticoagulant:An agent that is used to prevent the formation of blood clots. Anticoagulants have various uses. Some are used for the prevention or treatment of disorders characterized byabnormalbloodclots andemboli. Examples of diseases and conditions that requireanticoagulanttreatment to reduce the risk of blood clots include heart attack, stroke,deepvenousthrombosis, pulmonary embolism, and atrial fibrillation. There are different classes of anticoagulant drugs:
