Overview Bioequivalence Between Two Oral Formulations of Diphenhydramine Hydrochloride Status: Completed Trial end date: 2006-11-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine if two formulations of diphenhydramine hydrochloride are bioequivalent. Phase: Phase 1 Details Lead Sponsor: Johnson & Johnson Consumer and Personal Products WorldwideTreatments: DiphenhydraminePromethazine