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An alpha-blocker, C17H19N3O, used especially in the diagnosis and treatment of pheochromocytoma.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(fɛnˈtɒləˌmiːn; fɛnˈtɒləˌmɪn)
(Pharmacology) pharmacol a drug that is used to dilate the blood vessels and to treat high blood pressure that is due to phaeochromocytoma and also to treat impotence
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Noun1.phentolamine - a virility drug (trade name Vasomax) to treat erectile dysfunction in men
anti-impotence drug, virility drug - drug to treat impotence attributable to erectile dysfunction
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References in periodicals archive ?
Benzodiazepine can be used to control the seizures from severe exposures, and phentolamine may be needed to treat 2-PAM chloride-induced hypertension.
Phentolamine (vasodilator, side effect of hypotension) was injected to patients to avoid kidney warm ischemia and to speedily decrease the heartbeat until it stops
Furthermore, major side effects like bradycardia, ventricular asystole, or persistent hypotension have also been testified in patients with depressed left ventricular function or conduction disturbance, however this occurs rarely.17 Another complication observed was that the spasm was still reported in 10-20% of the cases even with the utilization of verapamil.8,18 Options other than verapamil like Phentolamine is an example of one such option.
Circulatory response to endotracheal intubation in light general anaesathesia-the effect of atropine and phentolamine. Anaesthesiology 1960;21:360-2.
In addition, intracavernosal injections with phentolamine, papaverine and alprostadil have been used successfully (80%) for improvement of erectile dysfunction by releasing higher levels of cyclic adenosine monophosphate, another potent dilatator, despite undesirable side effects such as priapism and hematoma (16).
In the operating room, shortly after intubation and Foley catheter insertion and prior to surgical incision, the patient's blood pressure rose to 350/180 mmHg without improvement despite intravenous phentolamine boluses.
Doggett, "The effect of propranolol phentolamine and pimozide on drug-induced anorexia in the mouse," Psychopharmacology, vol.
Injection cocktails of papaverine, phentolamine and prostaglandin E1 vasoactive drugs can be used as monotherapy or combination therapy to produce erections suitable for intercourse (Coombs, Heck, Guhring, Narus, & Mulhall, 2012; Hawksworth & Burnett, 2015).
Appropriate emergency medications were prepared for intraoperative administration, including IV phentolamine and nicardipine.
Treatment attempts with nimodipine, phentolamine, and dobutamine aiming at reducing SVRI and cardiac afterload and thereby improving the CI were largely ineffective.
Therefore, we determined the effects of [E.sub.2] and RAL treatments on the changes of blood pressure in vivo and ischemia susceptibility of the heart in adrenalin and phentolamine models.
Diazepam, Phentolamine and Nitroglycerin/Nitroprusside are the preferred drugs.