Principal alterations to drug kinetics and dynamics in the elderly

Area of Science:

• Geriatric Pharmacology
• Clinical Pharmacy
• Drug Safety in the Elderly

Background:

• Individuals aged 64 and above represent 15% of the UK population.
• This demographic accounts for 30% of all National Health Service (NHS) drug prescriptions.
• Adverse drug reactions (ADRs) contribute to 10.4% of geriatric medical admissions.

Purpose of the Study:

• To highlight the significant burden of adverse drug reactions in the elderly population.
• To identify critical flaws in existing research on the pharmacology of aging.
• To emphasize the need for drug-specific evaluations in older adults.

Main Methods:

• Critical review of existing literature on geriatric pharmacology.
• Identification of common methodological issues in studies on drug effects in the elderly.
• Analysis of drug bioavailability and subject selection criteria in published research.

Main Results:

• Many studies on the pharmacology of old age suffer from serious methodological flaws.
• Common issues include inadequate measurement of drug bioavailability.
• Inappropriate selection of study subjects with pre-existing or sub-clinical diseases is prevalent.

Conclusions:

• Generalizing the effects of aging on drug kinetics and dynamics is challenging.
• Each drug requires separate pharmacological evaluation in the elderly population.
• Improved research methodologies are crucial for understanding and mitigating ADRs in older adults.