title: Effect of intravenous application of esomeprazole 40 mg versus pantoprazole 40 mg on 24-hour intragastric pH in healthy adults.
abstract: BACKGROUND
  It has been demonstrated that therapy with proton pump inhibitors reduces recurrence of bleeding following initial endoscopic treatment of bleeding peptic ulcers.
  
  
  OBJECTIVE
  This study compared the effects of esomeprazole 40 mg and pantoprazole 40 mg on intragastric acid control. Both substances were administered intravenously as 15-min infusion and as bolus injection.
  
  
  METHODS
  Healthy men and women volunteers were enrolled in this single-center, open, randomized, three-way crossover study. After administration of esomeprazole 40 mg and pantoprazole 40 mg intravenously as 15-min infusion, and pantoprazole 40 mg intravenously as bolus injection, continuous 24-h intragastric pH monitoring was carried out.
  
  
  RESULTS
  pH data were available for 21 Helicobacter pylori-negative and seven H. pylori-positive volunteers. In H. pylori-negative volunteers, esomeprazole 40 mg intravenously resulted in 11.8 h with an intragastric pH>4 compared with 5.6 h for pantoprazole 40 mg intravenously as infusion (P<0.0001), and 7.2 h for pantoprazole 40 mg intravenously as bolus injection (P<0.001). During the first 6 h of administration, the corresponding values were 3.4, 1.1 (P<0.000001), and 2.1 h (P<0.001), respectively.
  
  
  CONCLUSIONS
  In H. pylori-negative patients, a single dose of esomeprazole 40 mg intravenously provides an intragastric acid control that is faster and more pronounced than administration of pantoprazole 40 mg intravenously.
authors.affiliation: Department of Medicine C (Gastroenterology), Academic Teaching Hospital of the Johannes-Gutenberg-University of Mainz, Ludwigshafen, Germany. medcluhartmann@t-online.de
authors.forename: Dirk
authors.initials: D
authors.lastname: Hartmann
authors.forename: Axel
authors.initials: A
authors.lastname: Eickhoff
authors.forename: Ulrich
authors.initials: U
authors.lastname: Damian
authors.forename: Juergen F
authors.initials: JF
authors.lastname: Riemann
authors.forename: Dieter
authors.initials: D
authors.lastname: Schilling
mesh_terms: D053799:2-Pyridinylmethylsulfinylbenzimidazoles / Q000494:pharmacology*; D000328:Adult; D000897:Anti-Ulcer Agents / Q000494:pharmacology*; D001824:Body Constitution; D018592:Cross-Over Studies; D064098:Esomeprazole / Q000494:pharmacology*; D005260:Female; D005744:Gastric Acid / Q000378:metabolism*; D005745:Gastric Acidity Determination; D016481:Helicobacter Infections / Q000378:metabolism; D016480:Helicobacter pylori; D006801:Humans; D006863:Hydrogen-Ion Concentration / Q000187:drug effects; D007262:Infusions, Intravenous; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic / Q000379:methods; D000077402:Pantoprazole
chemical_list: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000897:Anti-Ulcer Agents; D000077402:Pantoprazole; D064098:Esomeprazole