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phentolamine Syllabification: phen·tol·a·mine
Pronunciation: /fenˈtäləˌmēn/

Definition of phentolamine in English:


A synthetic compound used as a vasodilator, especially in certain cases of hypertension.
Example sentences
  • Agitation and anxiety can be controlled with benzodiazepines, and hypertension with labetalol, phentolamine, or nitroprusside.
  • Epinephrine may interact with alpha- and beta-adrenergic blocking agents such as propranolol and phentolamine.
  • Severe hypertension can be treated with labetalol, phentolamine, nitroprusside, or similar agents.


1950s: from phen- + tol(yl) (an isomeric cyclic radical derived from toluene) + amine.

Definition of phentolamine in:
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