Effect of sulpiride on serum gastrin in duodenal ulcer.

: The effect of N-ethyl-2(2-methoxy-5-sulfamido-benzamidomethyl-pyrrolidine (sulpiride, Dobren) on serum gastrin in patients with duodenal ulcer was evaluated. A statistically significant decrease in gastrinemia was observed. The possible mode of action of sulpiride is discussed. It is suggested that sulpiride by acting on the hypothalamus could possibly normalize the alterations of the mucosal barrier and restore the feed-back mechanism implicated in the autoregulation of antral gastrin secretion.