Overview IV Acetaminophen as an Analgesic Adjunct Status: Completed Trial end date: 2017-10-01 Target enrollment: Participant gender: Summary To determine the efficacy of intravenous (IV) acetaminophen as an analgesic adjunct to IV hydromorphone in the treatment of acute severe pain in the elderly Emergency Department (ED) patients. Phase: Phase 4 Details Lead Sponsor: Montefiore Medical CenterCollaborator: National Institute on Aging (NIA)Treatments: AcetaminophenAnalgesicsHydromorphone