Effect of histalog, insulin and reserpine on gastric emptying and secretion in man.

Four different groups of subjects were given Histalog, insulin or reserpine or acted as controls. Changes were noted in gastric emptying, acid, chloride, parietal and non-parietal secretions and neutral chloride. Gastric emptying and secretion were measured by the Hunt and Spurrell test meal as modified by us for drug testing.Histalog stimulated gastric secretion but not emptying. Insulin stimulated both secretion and emptying. Reserpine stimulated secretion but it stimulated emptying only in one-half of the subjects.After Histalog and reserpine the rise in hydrogen and chloride secretion was equal, so the neutral chloride did not increase. After insulin the rise of chloride was proportionately greater than the rise of hydrogen, so that neutral chloride was increased.