Domperidone for the Treatment of Chronic Nausea and Vomiting Secondary to Gastroparesis

To provide oral domperidone to patients between the ages of 18 and 60 years of age, according to the investigator's judgment, a prokinetic effect is needed for the relief of severe gastroparesis. We have defined severe gastroparesis as 1) positive gastric emptying scintigraphy (more than 10% residue at 4 hours), 2) nausea, 3) early satiety, 4) abdominal pain. We will recruit patients for two years and the patients will be given domperidone for up to two years.