Overview Study to Determine Safety and Effectiveness of Tadalafil on Prostate Related Sex Organ/Urinary Tract Problems Status: Completed Trial end date: 2005-07-01 Target enrollment: Participant gender: Summary Study to look at safety and effectiveness of different doses of tadalafil on prostate related genital/urinary tract problems. Phase: Phase 2 Details Lead Sponsor: Eli Lilly and CompanyCollaborator: ICOS CorporationTreatments: Tadalafil