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Cefpodoxime pharmacokinetics in children: effect of food
G L Kearns1, S M Abdel-Rahman, R F Jacobs
1Section of Pediatric Clinical Pharmacology and Experimental Therapeutics, The Children's Mercy Hospital, Kansas City, MO 64108, USA. gkearns@cmh.edu
Insights
Food intake affects cefpodoxime absorption rate, not extent, in children. Cefpodoxime proxetil oral suspension can be given with or without meals for treating pediatric infections.
Area of Science:
- Pharmacology
- Pediatric Medicine
- Infectious Diseases
Background:
- Cefpodoxime is a third-generation cephalosporin antibiotic for pediatric upper respiratory tract infections.
- This study investigated cefpodoxime proxetil oral suspension disposition in children.
Purpose of the Study:
- To characterize the pharmacokinetic disposition of cefpodoxime proxetil oral suspension in children.
- To compare drug absorption under fed versus fasted conditions.
Main Methods:
- A randomized two-way crossover study involving 17 children (5 months to 12 years).
- Single 10 mg/kg dose administered under fed and fasted states.
- Plasma concentrations quantified via HPLC; pharmacokinetic parameters determined using nonlinear regression.
Main Results:
- Cefpodoxime disposition modeled by a one-compartment open model.
- No significant differences in AUC, Cmax, or Ke between fed and fasted states.
- Tmax was prolonged and Ka was reduced under fed conditions, indicating slower absorption.
Conclusions:
- Food administration impacts the rate, but not the extent, of cefpodoxime absorption.
- Cefpodoxime proxetil oral suspension is suitable for pediatric administration regardless of meal status.
Background:
Cefpodoxime, an oral third generation cephalosporin antibiotic, is used for the treatment of acute upper respiratory tract infection caused by susceptible bacteria in children 5 months to 12 years of age. We report the results of a randomized two-way crossover study designed to characterize the disposition of a single dose (10 mg/kg) of cefpodoxime proxetil oral suspension in children, under fed and fasted conditions.
Methods:
Seventeen children (8.4 months to 12.2 years old, seven female) participated in this study. Each subject received a single 10-mg/kg dose of cefpodoxime proxetil oral suspension, after a predose fast and again coadministered with food. Repeated blood samples (n=10) were obtained during 12 h postdose and cefpodoxime was quantified from plasma by high performance liquid chromatography. Plasma concentration vs. time data were curve fit for each subject with a nonlinear weighted least squares algorithm, and pharmacokinetic parameters were determined from the polyexponential estimates.
Results:
Cefpodoxime disposition was best characterized using a one-compartment open model with first order absorption. The area under the plasma concentration vs. time curve, Cmax and Ke were not significantly different between fed and fasted conditions. However, Tmax was significantly prolonged (fed=2.79+/-1.10 h vs. fasted=1.93+/-0.54 h) and Ka was significantly smaller (fed=0.42+/-0.14 h(-1) vs. fasted=0.81+/-0.72 h(-1)) in the fed state.
Conclusions:
Administration of cefpodoxime in the presence of food affected the rate but not the extent of absorption. Cefpodoxime proxetil oral suspension can be administered without regard to meals in children 6 months to 12 years of age.
Related Concept Videos
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Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Pharmacokinetics in Pediatric Patients: Drug Distribution
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Pharmacokinetics in Pediatric Patients: Drug Excretion

