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Related Experiment Videos

Drug therapy in the elderly

M Ward, M Blatman

    American Family Physician
    |February 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    Special prescribing for elderly patients requires careful consideration. Factors like altered intestinal transit and concurrent medication use can significantly impact drug absorption and interactions.

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    Area of Science:

    • Geriatric Pharmacology
    • Clinical Pharmacy

    Background:

    • Elderly patients often present unique physiological changes affecting drug disposition.
    • Chronic gastrointestinal conditions like diarrhea or constipation are common in older adults.
    • Polypharmacy is prevalent in the elderly population, increasing the risk of drug interactions.

    Purpose of the Study:

    • To highlight the special considerations necessary when prescribing medications for elderly individuals.
    • To discuss how altered intestinal absorption and drug interactions pose challenges in geriatric pharmacotherapy.

    Main Methods:

    • Review of physiological changes in the elderly relevant to drug absorption.
    • Analysis of the impact of gastrointestinal motility on drug bioavailability.
    • Examination of potential interactions between commonly prescribed drugs in the elderly.

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    Main Results:

    • While basic absorption mechanisms remain unchanged, intestinal transit time variations (diarrhea, constipation) can alter drug absorption.
    • Concomitant use of agents like antacids or iron supplements can affect the absorption of certain medications.
    • The high incidence of concurrent drug use in the elderly increases the likelihood of post-absorption drug interactions.

    Conclusions:

    • Pharmacists and physicians must carefully evaluate medication regimens for elderly patients.
    • Understanding factors influencing drug absorption and interaction potential is crucial for safe and effective geriatric prescribing.
    • Individualized medication management is essential to optimize therapeutic outcomes in older adults.