• J T Wilson, R Helms, B D Pickering, L Donahue, and R D Brown.
• Department of Pediatrics, Louisiana State University Medical Center, Shreveport 71130-3932, USA.
• J Clin Pharmacol. 2000 Apr 1; 40 (4): 360-9.

AbstractCurrent acetaminophen (APAP) formulations approved for antipyretic use in children require up to five doses/day, which compromise compliance and risk breakthrough fever over 4 hours after dosing. A total of 112 evaluable febrile children received oral APAP-equivalent doses of either one dose of APAP controlled release (CR) as sprinkles on applesauce or one dose q 4 hours x 2 of APAP immediate-release (IR) elixir in an 8-hour, double-blind, double-dummy, randomized, multicenter study. Prior or concurrent antibiotic use did not significantly affect either the magnitude or the pattern of temperature reduction during the 8-hour observation period. Significantly greater aural temperature reductions were found with APAP-CR than with APAP-IR at 4 and 5 hours. However, the 8-hour AUCs of temperature reduction were not significantly different between treatments. Pharmacokinetic/pharmacodynamic modeling of APAP was performed in 8 patients with values in both treatments similar to previous results, except for expected differences in AUC0-infinity. Similar 8-hour temperature reduction for APAP-CR (one dose) and APAP-IR (two doses) demonstrates the efficacy of APAP-CR as an antipyretic in children 2 to 11 years of age. A decrease in the number of APAP daily doses and the prolonged antipyretic effect of APAP-CR may assist those who care for febrile children at home.

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