Papaverine-induced erection.

Sixty-one patients suffering from impotentia coeundi were treated with local dosages of papaverine hydrochloride, injected into the corpus cavernosum. In patients with neurogenic, psychogenic or a mild form of vascular disorders the injection induced erections which lasted on from 20 minutes to between 4 and 5 hours. Sixteen volunteers who were taught to self-administer the solution, injected the preadjusted dosage into the corpus cavernosum each time before the intended sexual act.