benign prostatic hyperplasia
"I am a very active 65 yr. old man.  I took Alfuzosin for one week.  The Good: after 3 days I noticed a significant reduction in the number of trips to the bathroom.  That was awesome.  The other amazingly weird thing was....I generally felt like I was 25 years younger.  The usual aches and stiffness that a man my age accepts were gone and my physical endurance was much better.  The Bad: I did have minor headaches that would creep into my day from time to time and occasionally I felt tired.  Also, my sex drive was diminished.  The Worst: I tried to have sex and had a hard time maintaining an erection.  My penis is now disfigured.  I have peyronie's disease, no kidding."