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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. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
|US brand names:||Regitine |
|Chemical structure:||m-[N-(2-Imidazolin-2-ylmethyl)-p-toluidino]phenol monomethanesulfonate|