losartan
noun
lo·sar·tan
| \ lō-ˈsär-ˌtan
\
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Medical Definition of losartan
: an antihypertensive drug that is administered orally in the form of its potassium salt C22H22ClKN6O and blocks the action of angiotensin II
Note: Losartan is marketed under the trademarks Cozaar and Hyzaar.