The effect of 15 (R) 15 methyl prostaglandin E2 on gastric acid secretion in duodenal ulcer patients.

The effect of synthetic analogue 15 (R) 15 methyl PGE2 on basal and pentagastrin stimulated maximal acid output in 24 duodenal ulcer patients has been studied. The prostagoandin analogue in a single oral dose of 150 mug reduced both basal and maximum output. Basal acid output fell from a mean control value of 5.9 +/- 1.5 mEq/hr to 2.1 +/- 0.6 mEq/hr (p less than 0.05) and maximum acid output from 32.1 +/- 1.6 mEq/hr to 20.6 mEq/hr (p less than 0.001). The volume of gastric secretion did not alter significantly in the basal state but fell significantly in the maximally stimulated state after prostaglandin administration.