prostatitis
"Have moderate prostatitis. Prescribed Cipro for 1 month.  Helped slightly, but at least condition didn't worsen. Had NO side-effects. Dr. switched me to Doxycycline. Slight improvement first 3 weeks. More improvement week 4 and 5.  PSA and symptoms continue to decline. Some experts recommend a longer anti-biotic course for prostatitis.... up to 12 weeks, because of difficulty drugs have penetrating the prostate gland."