Premature ejaculation (PE) in men with underlying erection problems affects a significant number of men. The standard treatment for erection problems is the use of drugs called PDE-5 inhibitors (for example, Viagra, Cialis, and Levitra). At this time, it is not clear whether adding the new drug dapoxetine to men whose underlying erectile dysfunction has been successfully treated will improve their premature ejaculation symptoms.
The main objective of the present study is to assess the effectiveness of a 12 week treatment with one of two doses of dapoxetine (taken as needed) compared to placebo (dummy treatment) in extending the time to to ejaculation in men with PE. and ED which are already treated with a PDE-5 inhibitor.