Overview Study Of Men With Mild To Moderate Erectile Dysfunction To Evaluate The Efficacy Of Viagra 8 Hours Post-Dose Status: Completed Trial end date: 2006-05-01 Target enrollment: Participant gender: Summary Safety/Efficacy of 100mg Viagra at 8 hours post dose in men with mild to moderate erectile dysfunction Phase: Phase 4 Details Lead Sponsor: PfizerPfizer's Upjohn has merged with Mylan to form Viatris Inc.Treatments: Sildenafil Citrate