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Principles of antibiotic therapy

G M Eliopoulos, R C Moellering

    The Medical Clinics of North America
    |January 1, 1982
    PubMed
    Summary

    Host factors and in vitro susceptibility testing are crucial for effective antibiotic therapy. Optimizing drug concentration and duration at the infection site, informed by pharmacokinetics, will lead to more rational treatment strategies.

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    Area of Science:

    • Microbiology
    • Pharmacology
    • Infectious Diseases

    Background:

    • Host factors significantly impact infection presentation and treatment outcomes.
    • Accurate in vitro susceptibility testing is essential for selecting appropriate antibiotics.
    • Current antibiotic dosing and duration recommendations are often based on empirical data.

    Purpose of the Study:

    • To highlight the importance of host factors and susceptibility testing in clinical infections.
    • To discuss factors affecting antibiotic efficacy at the infection site.
    • To advocate for a more rational approach to antibiotic therapy based on pharmacokinetic data.

    Main Methods:

    • Review of factors influencing antibiotic therapy success.
    • Discussion of in vitro susceptibility testing importance.
    • Analysis of pharmacokinetic principles for antimicrobial agents.

    Main Results:

    • Antibiotic success depends on reaching adequate drug concentrations at the infected site.
    • Local factors (pH, oxygen tension, inactivating substances) can alter antibiotic activity.
    • Pharmacokinetic data can inform more precise therapeutic recommendations.

    Conclusions:

    • Careful specimen collection for susceptibility testing is vital.
    • Understanding pharmacokinetics is key to optimizing antibiotic dosing and duration.
    • Future therapy recommendations should be data-driven, moving beyond empiric guidelines.

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