Comparison of cernitin pollen extract vs tadalafil therapy for refractory chronic prostatitis/chronic pelvic pain syndrome: A randomized, prospective study.

To compare the efficacy of cernitin pollen extract (cernitin) or tadalafil for treating persistent chronic pelvic pain despite α1-blocker monotherapy in men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and lower urinary tract symptoms (LUTS).