Using nationally representative data, we assessed the prevalence of erectile dysfunction medication (EDM) prescription, and its association with insertive condomless anal intercourse (CAI) with an HIV-serodiscordant partner among sexually-active HIV-infected men who have sex with men (MSM) receiving medical care in the United States. Overall, 14 % (95 % CI 12-16) were prescribed EDM and 21 % (95 % CI 19-23) engaged in serodiscordant CAI. MSM who were prescribed EDM were more likely to engage in insertive CAI with a serodiscordant casual partner than those not prescribed EDM after adjusting for illicit drug use before or during sex (adjusted prevalence ratio = 1.38; 95 % CI 1.01-1.88). We found no association with main partners. Only 40 % (95 % CI 36-44) of MSM prescribed EDM received risk-reduction counseling from healthcare professionals. Risk-reduction counseling should be provided at least annually to all HIV-infected persons as recommended, especially at the time of EDM prescription.
Keywords: Condomless anal intercourse; Erectile dysfunction medication; HIV-infected persons; Men who have sex with men.