Rapaflo
"BPH, 2 acute urinary retention episodes in less than a month. Started with Avodart (0.5 mg) daily (in the morning) and Rapaflo (4 mg, before going to sleep).  This combination seems to be working for me after 3 weeks (no waking up at night to pee, no urgency). Avodart shrinks the prostate (it may take up to 6 month to see improvement) and Rapaflo relaxes  the prostate gland and the bladder's neck to make it easy to urinate.  Rapaflo also gives me very strong erections (not sure why) and I do have retro ejaculation but I prefer that to the inconvenience  of having a catheter in which can also cause UTI. 

Every man's prostate is different. Just keep trying to find the right pill for you."