title: On call. I am 72 years old and have an embarrassing personal problem. I'ave had diabetes for 20 years and for the past 7 or 8 I've had erectile dysfunction. I tried Viagra as soon as it came out, but my erections were still weak. Recently I switched to Caverject, and I get good erections. But I don't come to climax anymore, although I did with Viagra. Can you explain the difference and offer suggestions?
mesh_terms: D000368:Aged; D048909:Diabetes Complications; D004542:Ejaculation; D007172:Erectile Dysfunction / Q000628:therapy*; D006801:Humans; D008297:Male; D009948:Orgasm / Q000502:physiology; D010410:Penile Erection / Q000502:physiology