Overview A Relative Bioavailability Study Between Two Formulations Of Sildenafil Citrate Status: Completed Trial end date: 2010-03-01 Target enrollment: Participant gender: Summary The purpose of this study is to perform a relative bioavailability study between two formulations of sildenafil citrate. Phase: Phase 1 Details Lead Sponsor: PfizerPfizer's Upjohn has merged with Mylan to form Viatris Inc.Treatments: Citric AcidSildenafil CitrateSodium Citrate