Phentolamine acetate (3-[(4,5-dihydro-1H-imidazol-2-ylmethyl)(4-methylphenyl)amino]phenol acetic acid) is a compound that has been shown to have anti-inflammatory and anti-cancer properties in vitro. It has also been shown to inhibit the growth of certain bacteria, including Staphylococcus aureus.

Phentolamine Analogue 1 is an analogue of phentolamine. Phentolamine is a nonselective antagonist of α-adrenergic.

Phentolamine mesylate (Phentolamine methanesulfonate) is a nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of RAYNAUD DISEASE and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.

Phentolamine hydrochloride is a blocking agent of adrenergic α receptor that is orally active [1].

Phentolamine mesylate is an alpha-1 and alpha-2 selective adrenergic receptor antagonist

LUN42518 HCl is an analogue of phentolamine. Phentolamine is a nonselective alpha-adrenergic antagonist.

SU 14542 is a highly potent alpha-receptor blocker that is 2-7 times more effective than phentolamine.