In rare cases, the patient is unable to urinate. A doctor usually can detect an enlarged prostate by rectal exam. The doctor also may examine the urethra, prostate, and bladder using a cytoscope, an instrument that is inserted through the penis. They have no treatment but get regular checkups and wait to see whether or not the condition gets worse. Alpha blockers are drugs that help relax muscles near the prostate and may relieve symptoms.
Side effects can include headaches.
Also, these medicines sometimes make people feel dizzy, lightheaded, or tired. Alpha blockers are new drugs, so doctors do not know their long term effects. It can shrink the prostate. Side effects of finasteride include declining interest in sex, problems getting an erection, and problems with ejaculation. Again, because it is new, doctors do not know its long-term effects.