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Drug interactions with antisecretory agents.

P D Hansten1

  • 1Department of Pharmacy Practice, Warren G. Magnuson Health Science Center, University of Washington, Seattle 98195.

Alimentary Pharmacology & Therapeutics
|January 1, 1991
PubMed
Summary
This summary is machine-generated.

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Antisecretory agents can alter drug absorption and metabolism. Cimetidine significantly inhibits drug metabolism and renal clearance, while omeprazole has a lesser impact, reducing potential adverse drug interactions.

Area of Science:

  • Pharmacology
  • Drug Interactions
  • Gastroenterology

Background:

  • Antisecretory agents impact drug pharmacokinetics.
  • Gastric acid inhibition affects absorption of acid-dependent drugs.
  • Hepatic metabolism and renal excretion can be altered.

Purpose of the Study:

  • To review drug interactions involving antisecretory agents.
  • To highlight mechanisms of altered drug absorption, metabolism, and excretion.
  • To compare the interaction profiles of cimetidine and omeprazole.

Main Methods:

  • Literature review of drug interaction studies.
  • Analysis of pharmacokinetic data related to antisecretory agents.
  • Comparison of interaction mechanisms and severity.

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Main Results:

  • Gastric acid suppression reduces absorption of drugs like ketoconazole.
  • Cimetidine inhibits hepatic drug metabolism and renal clearance of procainamide.
  • Omeprazole shows less inhibition of hepatic metabolism than cimetidine.

Conclusions:

  • Antisecretory agents pose significant drug interaction risks.
  • Cimetidine presents a higher risk of adverse effects due to drug interactions.
  • Omeprazole appears to have a more favorable interaction profile.