[Inhibition by somatostatin of pancreatic juice and enzyme secretion and gallbladder contraction in man induced by secretin and cholecystokinin-pancreozymin administration (author's transl)].

Somatostatin (200 mug/h) was administered to five healthy volunteers after submaximal stimulation of exocrine pancreatic secretion with 0.33 KU secretin or cholecystokinin-pancreozymin, given intravenously. In all instances there was a significant reduction in duodenal secretory volume after secretin, without any change in HCO3- concentration. Stimulation of enzyme secretion by cholecystokinin-pancreozymin was significantly inhibited and gallbladder contraction abolished.