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J Urol. 1991 Dec;146(6):1564-5.

An improved vasoactive drug combination for a pharmacological erection program.

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1
Division of Urological Surgery, Albany Medical Center, New York.

Abstract

Papaverine hydrochloride (smooth muscle relaxant), phentolamine mesylate (alpha-adrenergic blocking agent) and prostaglandin E1 (vasodilator and smooth muscle relaxant) were combined to produce a potent vasoactive drug therapy for use in a pharmacological erection program. Doses of 2.5 cc papaverine (30 mg./cc), 0.5 cc phentolamine (5 mg./cc), 0.05 cc prostaglandin E1 (500 micrograms./cc) and 1.2 cc 0.9% normal saline were combined to produce a vial of 4.25 cc for patient convenience. Twenty unit vials were made from the 1 cc vial of prostaglandin E1, the most expensive ingredient. The solution is physiologically active for at least 6 months and can be stored at room temperature although refrigeration is recommended. The pH of the solution is 4. This vasoactive drug combination has been used in 116 patients for diagnostic testing and subsequent treatment. A dose of 0.25 cc has been effective for diagnosis and treatment in the majority of patients with mild to moderate arteriogenic and/or venogenic and diabetic impotence. For patients with neurogenic dysfunction 0.1 to 0.125 cc was the usual dose. Two patients had a prolonged erection requiring irrigation, 1 on the day of initial testing and 1 on home therapy. Pain at the site of injection or during intercourse was noted in only 2 patients and to date no fibrosis or plaques have been found.

PMID:
1719248
[Indexed for MEDLINE]
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