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[Age-related characteristics of ceftazidime pharmacokinetics in children]

P I Prokhorenko, L S Strachunskiĭ, E G Andreenkova

    Antibiotiki I Khimioterapiia = Antibiotics and Chemoterapy [Sic]
    |June 1, 1992
    PubMed

    Insights

    Ceftazidime clearance and volume of distribution decrease with age in children, impacting dosing. These age-dependent pharmacokinetic changes in ceftazidime are crucial for effective treatment regimens.

    Area of Science:

    • Pharmacology
    • Pediatric Medicine
    • Clinical Pharmacy

    Background:

    • Ceftazidime is a widely used antibiotic, particularly in pediatric patients.
    • Understanding age-related pharmacokinetic variations is essential for optimizing drug efficacy and safety.

    Purpose of the Study:

    • To investigate potential age-dependent changes in ceftazidime pharmacokinetics in children with peritonitis.
    • To inform rational dosage regimen design for pediatric ceftazidime administration.

    Main Methods:

    • Plasma concentrations of ceftazidime were measured using High-Performance Liquid Chromatography (HPLC).
    • Pharmacokinetic parameters were determined in 10 children (aged 2-13 years) after a single intravenous dose.
    • Data were compared with previously published data in older children, adults, and elderly patients.

    Main Results:

    • A notable age-dependent decrease in ceftazidime total clearance (Cl) was observed.
    • The volume of distribution (Varea) also showed a similar age-related decreasing trend.
    • Age-induced changes in ceftazidime half-life were minimal despite reductions in Cl and Varea.

    Conclusions:

    • Significant age-dependent variations in ceftazidime pharmacokinetics exist in pediatric populations.
    • These pharmacokinetic differences necessitate adjustments in dosing strategies for children of different ages.
    • Consideration of age-specific ceftazidime pharmacokinetics is vital for developing effective treatment plans.

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