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The study aimed to characterize the population pharmacokinetics of pentobarbital and evaluate its dosing strategies in pediatric patients.

Population Pharmacokinetics and Dosing Simulations of Pentobarbital in the Pediatric Population

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The study aimed to characterize the population pharmacokinetics of pentobarbital and evaluate its dosing strategies in pediatric patients.
Characterized pharmacokinetics using a two-compartment population PK model allometrically scaled to total body weight.
Conducted simulations across four age groups: 1 to <2 years, 2 to <6 years, 6 to <12 years, and 12 to <18 years.
Evaluated dosing regimens for preoperative sedation and seizure management.
Achieved comparable exposures across age groups, with older/heavier patients showing slightly higher exposures at non-capped doses.
Recommended intravenous bolus doses of 1 mg/kg for preoperative sedation and continuous infusion of 1 mg/kg/h for seizure management.
Suggested lower infusion rates (0.75 mg/kg/h) for older children to match younger patient exposures receiving 1 mg/kg/h.

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Randomized trial characterizes pharmacokinetics of pentobarbital in pediatric patients, suggesting appropriate dosing strategies.

Helfer et al. (2026) studied this question.

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