Tamsulosin
"I'm a very young 60-year-old and  active sexually. But have had problems peeing and then rushing to the loo to pee and no stream at all and then waking up two or three times a night. I've been on Flomax for three weeks and I have a much stronger stream when I have to pee, and now only wake up once a night or maybe not at all. But the worst thing is it has absolutely KILLED my sex drive, it's hard to get erect, it's hard to feel any sensation and it's hard to climax.  I am a bit at a loss because I don't want the TURP (Transurethral resection of the prostate) procedure, which means no more ejaculation - they go retrograde into the bladder"