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Avoiding common pitfalls of geriatric prescribing.

H M Wieman

    Geriatrics
    |June 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Drug levels and effects correlate with organ function. Impaired excretion necessitates dose adjustments, and high drug levels warrant investigation into organ function, especially in elderly patients using multiple medications.

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    Area of Science:

    • Pharmacology
    • Nephrology
    • Geriatrics

    Background:

    • Drug efficacy and toxicity are closely linked to the patient's excretory organ function.
    • Understanding drug metabolism and elimination is crucial for safe and effective pharmacotherapy.
    • Polypharmacy, particularly in elderly populations, complicates drug level monitoring and management.

    Purpose of the Study:

    • To emphasize the inverse relationship between excretory organ function and ultimate drug levels.
    • To highlight the importance of dose reduction in cases of known organ deficit.
    • To stress the need for investigating excretory function when drug levels are unexpectedly high.

    Main Methods:

    • Review of pharmacological principles governing drug excretion.
    • Analysis of the clinical implications of impaired organ function on drug pharmacokinetics.

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  • Emphasis on physician awareness regarding patient medication history, including non-prescribed drugs.

    • Main Results:

    • Ultimate drug levels and maximum drug effect are generally inversely proportional to excretory organ function.
    • Known organ deficit mandates automatic dose reduction.
    • Elevated drug levels at standard doses indicate a need to investigate the excretory organ.

    Conclusions:

    • Physicians must consider potential drug intake from non-prescribed sources, especially in the elderly.
    • Proactive assessment of excretory organ function is essential for optimizing drug therapy and preventing toxicity.
    • Individualized dosing strategies are critical, particularly in vulnerable patient populations.