Definition of warfarin in English:



mass noun
  • A water-soluble compound with anticoagulant properties, used as a rat poison and in the treatment of thrombosis.

    A coumarin derivative; chemical formula: C₁₉H₁₆O₄

    • ‘His warfarin treatment was terminated in anticipation of a biliary stent.’
    • ‘Should she be treated with aspirin or warfarin to reduce her risk of stroke?’
    • ‘Commercial thromboplastins vary widely in their sensitivities to warfarin.’
    • ‘The degree of anticoagulation for patients taking warfarin was also recorded.’
    • ‘If the patient is taking warfarin, reverse anticoagulation with fresh frozen plasma.’
    • ‘Anticoagulation with warfarin after discharge should continue for at least three months, possibly six months.’
    • ‘Many drugs and foods are known to interfere with the anticoagulation effect of warfarin.’
    • ‘Several studies have shown that immediate heparinisation followed by warfarin treatment improves survival.’
    • ‘Examples of anticoagulants include aspirin, heparin, and warfarin.’
    • ‘But the proper dose of warfarin can vary greatly and can be hard to predict.’
    • ‘Omitted prescription medications included such drugs as oxycodone, warfarin, and insulin.’
    • ‘Whether warfarin was superior to aspirin for stroke prevention was unclear prior to WARSS.’
    • ‘Comparison of warfarin and aspirin for symptomatic intracranial arterial stenosis.’
    • ‘Both aspirin and warfarin reduce the risk of blood clots that can cause stroke.’
    • ‘If bleeding risk prohibits the use of warfarin, aspirin is an appropriate alternative.’
    • ‘The patient was treated with warfarin and atenolol, and he has since remained well.’
    • ‘This latter reaction is the site of action of the dicumarol based anticoagulants such as warfarin.’
    • ‘There is no evidence that anticoagulation with either heparin or warfarin improves these outcomes.’
    • ‘Possible influences of ginseng on the pharmacokinetics and pharmacodynamics of warfarin in rats.’
    • ‘She was given the anticoagulant warfarin, but suffered an adverse reaction and was switched to another drug, Phenindione.’


1950s: from the initial letters of Wisconsin Alumni Research Foundation + -arin on the pattern of coumarin.