Unfortunately it does not. It just allows you to go to the bathroom better. Flomax relaxes the smooth muscle, which is why you get up less but have retrograde. You need a 5ari, Avodart or Finestiride to reverse the growth of the prostate. BPH is a dual component disease: not going to the bathroom/getting up all night brings you to the doctor, the real issue is prostate growth. As the prostate continues to grow it will eventually close off the urethrea. Then the only option is surgery. Remember, urologist are surgeons so they want to do a TURP/TUNA or radical prostatectomy. Lots of potential negative problems when you get into surgery; ED, etc.
Sorry about the book