Article

Oral sildenafil in the treatment of erectile dysfunction in diabetic men: a randomized double-blind and placebo-controlled study.

Department of Urology, Military University of Medical Sciences, P.O. Box 19395-1849, Tehran, Iran.
Journal of Diabetes and its Complications (Impact Factor: 1.93). 01/2004; 18(4):205-10.
Source: PubMed

ABSTRACT To determine the efficacy and safety of oral sildenafil citrate in the treatment of erectile dysfunction (ED) in diabetic men.
In a randomized, double-blind, placebo-controlled, and fixed-dose study, a total of 282 men (mean age, 46.4 years) with ED (mean duration, 3.6 years) and diabetes (mean duration, 11 years) were randomly assigned to receive 100 mg sildenafil (n=144) or placebo (n=138) approximately 1 h before planned sexual activity, but not more than once daily, for 16 weeks. The efficacy of two treatments was assessed using responses to the International Index of Erectile Function (IIEF) questionnaire.
Two hundred sixty-two (93%) of men completed the study (134/144 in the sildenafil group, 128/138 in the placebo group). Positive clinical results were obtained in 68 (51%) of 134 patients in the sildenafil group compared with 14 (11%) of 128 patients in the placebo group (P<.003). Fifty-nine percent of the patients reported at least one successful attempt at sexual intercourse in the sildenafil group as compared with 21% successful attempts for the placebo group (P<.002). Drug-related adverse effects occurred in 32 (22%) of 144 patients taking sildenafil and 4 (3%) of 138 patients receiving placebo. The most common adverse events were headache (20% sildenafil, 2% placebo), flushing (19% sildenafil, 0% placebo), dyspnea (9% sildenafil, 2% placebo), rhinitis (6% sildenafil, 0% placebo), and cardiovascular effects (7% sildenafil, 0% placebo). Of patients taking sildenafil, four (2.7%) developed new chest pains, with documented myocardial infarction in two.
Oral sildenafil is a moderately effective treatment for ED in men with diabetes. The response rate was lower and cardiovascular events were higher than previously reported in nondiabetic patients.

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