warfarin


war·fa·rin

noun \ˈwr-fə-rən\

Definition of WARFARIN

:  a crystalline anticoagulant coumarin derivative C19H16O4 used chiefly in the form of its sodium salt as a rodent poison and in medicine

Origin of WARFARIN

Wisconsin Alumni Research Foundation (its patentee) + coumarin
First Known Use: 1950

war·fa·rin

noun \ˈwr-fə-rən\   (Medical Dictionary)

Medical Definition of WARFARIN

: a crystalline anticoagulant coumarin derivative C19H16O4 related to dicumarol that inhibits the production of prothrombin by vitamin K and is used as a rodent poison and in medicine; also : its sodium salt C19H15NaO4 used especially in the prevention or treatment of thromboembolic disease—see coumadin

warfarin

noun    (Concise Encyclopedia)

Anticoagulant drug, marketed as Coumadin. Originally developed to treat thromboembolism (see thrombosis), it interferes with the liver's metabolism of vitamin K, leading to production of defective coagulation factors. Warfarin therapy risks uncontrollable hemorrhage, either spontaneously or from any cut or bruise; it requires frequent checks to maintain the proper level in the blood. In high concentrations, warfarin is used as a rodent poison, causing death by internal bleeding.

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