HYDRALAZINE

hydralazine, Apresoline

(noun) an antihypertensive drug (trade name Apresoline) that dilates blood vessels; used (often with a diuretic) to treat hypertension and congestive heart failure

Source: WordNet® 3.1

Noun

hydralazine (countable and uncountable, plural hydralazines)

A direct-acting smooth muscle relaxant used to treat hypertension by acting as a vasodilator primarily in arteries and arterioles.

Source: Wiktionary