phentolamine mesylate and its Impurities

Phentolamine Mesylate is indicated for the prevention or control of hypertensive episodes that may occur in a patient with pheochromocytoma as a result of stress or manipulation during preoperative preparation and surgical excision.Reference standards of Phentolamine Mesylate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.