This study is to evaluate whether PED-1 is effective than Placebo in the treatment of premature ejaculation. The patients will be randomized and allocated to two treatment groups into placebo, PED-1. The criteria for Intravaginal Ejaculation Latency Time(IELT) for enrollment will be > or =2 min in the at least 75% of the sexual intercourse. To diagnosis premature ejaculation, the PEDT(Premature Ejaculation Diagnosis Tool) will be used. The patients undergone drug free baseline period will take test drugs for 12 weeks.
The purpose of this study is to evaluate whether PED-1 is more effective than Placebo in the treatment of premature ejaculation.