title: [Intragastric acidity under the prostaglandin E2 analog trimoprostil. Increased inhibitory effect through administration after meals].
abstract: In this double-blind cross-over study the effect of trimoprostil (trimethyldesoxyprostaglandin E2), an orally effective prostaglandin E2 analogue, on 24-h intragastric H+-activity, nocturnal acid output, nocturnal volume secretion and meal stimulated gastrin secretion was determined in 12 healthy male volunteers. On three different days the subjects received four times a day either placebo or 1.5 mg trimoprostil 30 min before or 30 min after meals. Trimoprostil administered before or after meals reduced 24-h intragastric acidity by 27.0 and 53.9%. Nocturnal acid output was inhibited by 32.7 and 55.6%. Nocturnal volume secretion and meal stimulated gastrin secretion remained unaffected. The study shows that the antisecretory activity is significantly increased when trimoprostil is given after meals.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D002986:Clinical Trials as Topic; D015232:Dinoprostone / Q000031:analogs & derivatives*; D004435:Eating; D005744:Gastric Acid / Q000378:metabolism; D005745:Gastric Acidity Determination; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D011459:Prostaglandins E, Synthetic / Q000008:administration & dosage / Q000009:adverse effects / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D011459:Prostaglandins E, Synthetic; C038879:trimoprostil; D015232:Dinoprostone
vernacular_title: Die intragastrale Säurekonzentration unter dem Prostaglandin E2-Analogon Trimoprostil. Stärkerer Hemmeffekt durch Einnahme nach dem Essen.