Related Experiment Videos
[What is important in treating elderly with H2 receptor antagonists]
1Third Department of Internal Medicine, Teikyo University School of Medicine.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 22, 2002
Summary
Histamine 2 receptor antagonists (H2RAs) are safe for treating ulcers and reflux. Elderly patients require adjusted H2RA dosages due to renal function and potential drug interactions, especially with cimetidine.
Area of Science:
- Pharmacology
- Geriatric Medicine
- Gastroenterology
Context:
- Histamine 2 receptor antagonists (H2RAs) are commonly prescribed for peptic ulcers and reflux esophagitis.
- H2RAs are available over-the-counter in Japan, increasing accessibility.
- Elderly individuals exhibit altered drug metabolism compared to younger populations.
Purpose:
- To highlight crucial considerations for prescribing H2RAs to elderly patients.
- To emphasize the need for dosage adjustments in geriatric populations due to renal function.
- To identify potential drug interactions associated with specific H2RAs like cimetidine.
Summary:
- Elderly patients often have impaired renal function, necessitating lower H2RA dosages.
- Cimetidine can inhibit hepatic metabolism, increasing concentrations of co-administered drugs like warfarin and benzodiazepines.
- Alternative H2RAs without significant drug interaction profiles are recommended over cimetidine for elderly patients.
Impact:
- Ensures safer and more effective H2RA therapy in the elderly population.
- Reduces the risk of adverse drug events and potentiated side effects in geriatric patients.
- Promotes rational drug selection and pharmacotherapy management in elderly care settings.