warfarin

noun

war·​fa·​rin ˈwȯr-fə-rən 

: 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

Ginkgo Biloba and Blood-Thinning Medication Ginkgo biloba supplements can also increase the risk of bleeding when taken with blood-thinning medications like warfarin or aspirin.12 9. —Alyssa Hui-Anderson, Verywell Health, 31 Oct. 2024

For example, ginkgo can interact with medications that prevent blood clots, like warfarin and aspirin.22 Ask a healthcare provider or pharmacist about potential interactions before using any memory-boosting supplement. —Emmanuella Ogbonna, Health, 23 Oct. 2024

This may include warfarin (Coumadin), apixaban (Eliquis), aspirin, and clopidogrel (Plavix). —Kirstyn Hill, Pharmd, Mph, Health, 22 Sep. 2024

Using nonsteroidal inflammatory drugs (NSAIDs) like aspirin and ibuprofen, as well as other anticoagulants such as warfarin, may add to that risk. —Alex Yampolsky, Verywell Health, 9 Sep. 2024

Word History

Etymology

Wisconsin Alumni Research Foundation (its patentee) + coumarin

First Known Use

1950, in the meaning defined above

Medical Definition

warfarin

noun

war·​fa·​rin ˈwȯr-fə-rən 

: 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