warfarin

noun
war·​fa·​rin | \ ˈwȯr-fə-rən How to pronounce warfarin (audio) \

Definition of warfarin

: a crystalline anticoagulant coumarin derivative C19H16O4 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

Examples of warfarin in a Sentence

Recent Examples on the Web People with any bleeding disorder or those who are taking medication to prevent clotting, such as warfarin, apixaban (Eliquis) or clopidogrel (Plavix), should discuss curcumin or turmeric supplements with their doctor before taking. Dr. Keith Roach, oregonlive, 2 June 2022 But there are quite a few others, some of which cannot be tested for while on specific anticoagulants, such as protein C and S deficiency while on warfarin. Dr. Keith Roach, oregonlive, 4 May 2022 When tests revealed the clot, Dr. Frayling was prescribed the anticoagulant warfarin. Suryatapa Bhattacharya, WSJ, 10 Dec. 2021 In the clinical trial of Eliquis, patients getting the drug were 11% less likely to die from any cause than those getting warfarin, which for decades had been the only anticoagulant used to prevent strokes in people with atrial fibrillation. John Fauber And Coulter Jones, Milwaukee Journal Sentinel, 23 Aug. 2021 However, there is no reason to believe that this was more likely in the apixaban (Eliquis) arm than in the warfarin arm. John Fauber And Coulter Jones, Milwaukee Journal Sentinel, 23 Aug. 2021 The new drugs have proved to be an expensive alternative to warfarin. John Fauber And Coulter Jones, Milwaukee Journal Sentinel, 23 Aug. 2021 Among Eliquis users, 1.3% had a stroke or a blood vessel clot, compared with 1.6% who got warfarin. John Fauber And Coulter Jones, Milwaukee Journal Sentinel, 23 Aug. 2021 Rodent baits typically contain a warfarin concentration of about 250 parts per million. Stephen Ornes, The Atlantic, 15 May 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'warfarin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of warfarin

1950, in the meaning defined above

History and Etymology for warfarin

Wisconsin Alumni Research Foundation (its patentee) + coumarin

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The first known use of warfarin was in 1950

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Dictionary Entries Near warfarin

warfare

warfarin

warfaring

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Last Updated

3 Jul 2022

Cite this Entry

“Warfarin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warfarin. Accessed 16 Aug. 2022.

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More Definitions for warfarin

warfarin

noun
war·​fa·​rin | \ ˈwȯr-fə-rən How to pronounce warfarin (audio) \

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

More from Merriam-Webster on warfarin

Britannica.com: Encyclopedia article about warfarin

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