clazosentan

Etymology
From.

Noun

 * 1)  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.