title: Dose response inhibition in man of meal-stimulated gastric acid secretion by 15(R)-15-methyl prostaglandin E2, given orally.
abstract: 15(R)-15-methyl prostaglandin E2 was given orally to healthy male volunteers. Thirty minutes later a 10% peptone meal was introduced into the stomach, and the acid response was measured by continuous intragastric titration with 0.5 N NaOH for the next two hours. The prostaglandin inhibited acid output in a dose dependent manner; the ED50 (dose inhibiting acid output by 50%) was as little as 10 micrograms per subject (or approximately 140 ng/kg). This compound is the most potent orally active inhibitor of gastric acid secretion in man that is known. It is likely that the antisecretory and cytoprotective properties shared by 15(R)-15-methyl prostaglandin E2 would be beneficial in the treatment of peptic ulcer and in preventing recurrences.
mesh_terms: D000284:Administration, Oral; D000293:Adolescent; D000328:Adult; D001101:Arbaprostil / Q000008:administration & dosage / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005744:Gastric Acid / Q000378:metabolism*; D006801:Humans; D008297:Male; D011459:Prostaglandins E, Synthetic / Q000494:pharmacology*; D011897:Random Allocation; D012636:Secretory Rate / Q000187:drug effects
chemical_list: D011459:Prostaglandins E, Synthetic; D001101:Arbaprostil