The effectivenss of intravenous Ritalin (10 mg vs. 20 mg) and nasal instillation of diethyl ether (2 cc) for the treatment of hiccup in 38 patients during and immediately following anesthesia. Ritalin, regardless of the dosage employed, was more effective than ether. Nausea and retching were more prevalent among patients treated with Ritalin, however, than with ether.