Risk factors in geriatric drug prescribing. A practical guide to avoiding problems

Area of Science:

• Gerontology
• Clinical Pharmacology
• Internal Medicine

Background:

• Medications are crucial for disease management but can cause iatrogenic (medication-induced) illness.
• Older adults are particularly vulnerable to drug toxicity, experiencing symptoms like confusion, falls, and functional decline.
• Normal aging alters drug metabolism, distribution, and excretion, increasing sensitivity to medications.

Purpose of the Study:

• To highlight the risks of medication toxicity in the elderly.
• To identify factors exacerbating drug side effects in older patients.
• To provide guidance on avoiding problematic medications in geriatric populations.

Main Methods:

• Review of existing literature on drug toxicity in the elderly.
• Analysis of age-related physiological changes affecting pharmacokinetics and pharmacodynamics.
• Identification of drug classes associated with increased risk in older adults.

Main Results:

• Iatrogenic illness from medications is common and severe in the elderly.
• Age-related physiological changes and polypharmacy increase the risk and severity of adverse drug events.
• Long-acting drugs, those requiring hepatic metabolism, anticholinergic agents, and sedating drugs pose significant risks.

Conclusions:

• Physicians must carefully assess the risk-benefit ratio before prescribing medications to older patients.
• Avoiding specific drug classes known to cause problems in the elderly is crucial for patient safety.
• Understanding the unique vulnerabilities of older adults to medications is essential for effective and safe pharmacotherapy.