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Lancet. 1987 Aug 22;2(8556):421-3.

Double-blind trial of yohimbine in treatment of psychogenic impotence.


48 subjects meeting strict diagnostic criteria for psychogenic impotence took part in a 10 week placebo-controlled, double-blind, partial crossover trial of yohimbine (18 mg a day) for restoring erectile function. At the end of the first arm of the trial 62% of the yohimbine group and 16% of the placebo group reported some improvement in sexual function (chi 2 = 10.41, df = 2, p less than 0.05). 21% of the originally placebo-treated group noticed some improvement over pre-treatment levels when they were put on yohimbine in the second arm of the trial. Overall 46% of those who received yohimbine reported a positive response to the drug, a response rate very similar to that observed in a previous study of patients with organic impotence. Response to yohimbine thus seems to be unrelated to current groupings of the cause of impotence. Yohimbine is a safe treatment for psychogenic impotence that seems to be as effective as sex and marital therapy for restoring satisfactory sexual functioning.

[Indexed for MEDLINE]

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