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Medical Dictionary


noun lo·sar·tan \lō-ˈsär-ˌtan\

Medical Definition of losartan

  1. :  an antihypertensive drug that is administered orally in the form of its potassium salt C22H22ClKN6O and blocks the action of angiotensin II Losartan is marketed under the trademarks Cozaar and Hyzaar.

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