warfarin

noun

war·​fa·​rin ˈwȯr-fə-rən How to pronounce warfarin (audio)
: 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 Consuming too much vitamin K through food or supplements can decrease the effectiveness of warfarin, increasing the risk of blood clots. Jamie Johnson, Verywell Health, 15 Aug. 2024 Potential drug interactions with dong quai include medications that affect blood clotting (such as warfarin) and estrogen. Kirstyn Hill, Pharmd, Mph, Health, 13 Aug. 2024 Then, in the 1950s, chemists perfected a number of anticoagulant rodenticides, such as warfarin, that could be delivered in powders, pastes, pellets, or baits. Bydina Fine Maron, science.org, 10 July 2024 Both ingredients may interact with warfarin and increase the risk of bleeding. Isabel Vasquez Rd Ldn, Verywell Health, 5 Aug. 2024 See all Example Sentences for warfarin 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'warfarin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Wisconsin Alumni Research Foundation (its patentee) + coumarin

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of warfarin was in 1950

Dictionary Entries Near warfarin

Cite this Entry

“Warfarin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warfarin. Accessed 11 Sep. 2024.

Medical Definition

warfarin

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

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