The story
From [Term?] + -entan (“endothelin receptor antagonist”).
Etymology from Wiktionary, CC BY-SA 4.0.
clazosentan
Today it means: A sulfonamide drug, N-[6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-2-[2-(2H-tetrazol-5-yl)pyridin-4-yl]pyrimidin-4-yl]-5-methylpyridine-2-sulfonamide, that controls vasospasm. Full definition →