1) Anit-impotence drug 2) Antihypertensive agent 3) Vasomax 4) Virility drug 1) Vasomax 
==Mechanism== Its primary action is vasodilation due to α1 blockade. It also can lead to reflex tachycardia because of hypotension and α2 inhibition, which increases sympathetic tone. ==Uses== The primary application for phentolamine is for the control of hypertensive emergencies, most notably due to pheochromocytoma. It also has usefulness in t...
<radiology> Alpha-adrenergic blocker, give before IV contrast in patient with pheochromocytoma ... (12 Dec 1998) ... 
(fen-tol´ә-mēn) a potent alpha-adrenergic blocking agent that blocks the hypertensive action of epinephrine and norepinephrine and most responses of smooth muscles that involve alpha-adrenergic receptors. Its mesylate salt is used intravenously or intramuscularly to prevent and treat hypertension occurring before a...
[n] - a virility drug (trade name Vasomax) to treat erectile dysfunction in men
Vasomax noun a virility drug (trade name Vasomax) to treat erectile dysfunction in men