The initial examination of the efficacy of low-dose promethazine for the treatment of nausea and vomiting in the hospitalized elderly.

The purpose of this study was to assess efficacy and safety of 3 doses (6.25 mg, 12.5 mg, 25 mg) of intravenous (IV) promethazine in treatment of established nausea and vomiting (N/V) in hospitalized elderly patients.