Cancer Terms

Phentolamine

Cancer Terms -> Drugs and Chemicals -> Pharmacologic Substance -> Agent Affecting Nervous System -> Adrenergic Agent -> Adrenergic Antagonist -> Alpha-adrenergic Blocking Agent -> Phentolamine

Phentolamine Definition

The mesylate salt of a synthetic imidazoline with alpha-adrenergic antagonist activity. As a competitive alpha-adrenergic antagonist, phentolamine binds to alpha-1 and alpha-2 receptors, resulting in a decrease in peripheral vascular resistance and vasodilatation. This agent also may block 5-hydroxytryptamine (5-HT) receptors and stimulate release of histamine from mast cells.

Phentolamine Synonyms

Phentolamine Mesylate, 2-[N-p'-Tolyl-N-(m'-hydroxyphenyl)aminomethyl]imidazoline Monomethanesulfonate, PHENTOLAMINE MESYLATE, Regitine

Terms in Phentolamine category



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