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[Drug therapy in the elderly. What should we know?]
P Wotquenne1, J Petermans, A J Scheen
1Service de gériatrie, et Unité de pharmacologie clinique CHU, Domaine du Sart Tilman, 8-4000 Liège.
Revue Medicale Suisse
|September 16, 2006
Summary
Elderly populations face complex drug therapy challenges due to aging factors and polypharmacy, increasing risks of adverse drug events and hospitalizations. Enhanced medical education is crucial for improving medication safety in older adults.
Area of Science:
- Geriatric medicine
- Clinical pharmacology
- Public health
Context:
- Increasing global population longevity leads to greater exposure of the very old to multiple medications.
- Drug therapy in the elderly is complicated by knowledge gaps and high rates of inappropriate prescribing.
- Physiological changes in aging, such as altered body composition and renal function, can increase drug accumulation and toxicity risks.
Purpose:
- To highlight the challenges and risks associated with drug therapy in the elderly population.
- To underscore the importance of understanding age-related physiological changes on pharmacokinetics and pharmacodynamics.
- To advocate for improved education and management strategies for medication use in older adults.
Summary:
- Polypharmacy is common in the elderly, with inappropriate prescriptions contributing to significant health risks.
- While hepatic metabolism (cytochrome P450) appears largely unaffected by age, changes in body composition and organ function can impair drug clearance.
- Iatrogenic pathology is a frequent complication, often necessitating hospitalization and diminishing quality of life.
Impact:
- Addressing medication management in the elderly is a critical public health issue.
- Improved understanding and education can reduce adverse drug events, hospitalizations, and healthcare costs.
- Specialized training for healthcare teams is essential to optimize pharmacotherapy and enhance patient outcomes in geriatric populations.
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