Journal
PEDIATRICS
Volume 126, Issue 6, Pages E1430-E1444Publisher
AMER ACAD PEDIATRICS
DOI: 10.1542/peds.2009-3352
Keywords
acetaminophen; children; drug safety; liver failure; systematic reviews
Categories
Funding
- McNeil Consumer Healthcare
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BACKGROUND: Concern exists about the potential for liver injury with therapeutic dosing of acetaminophen in children. OBJECTIVE: We systematically reviewed the medical literature to determine the rate at which liver injury has been reported for children prescribed therapeutic doses of acetaminophen (<= 75 mg/kg per day orally or intravenously or <= 100 mg/kg per day rectally). METHODS: We searched Medline, Embase, and the Cochrane Central Register of Controlled Trials to locate all studies in which acetaminophen was administered to a defined pediatric population for >= 24 hours and for all case reports of liver injury after therapeutic acetaminophen dosing. Trained reviewers extracted data from each report. Major and minor hepatic adverse events (AEs) were defined prospectively. Causality was assessed by using the Naranjo algorithm. RESULTS: A total of 62 studies that enrolled 32 414 children were included. No child (0% [95% confidence interval: 0.000-0.009]) was reported to have exhibited signs or symptoms of liver disease, to have received an antidote or transplantation, or to have died. Major or minor hepatic AEs were reported for 10 children (0.031% [95% confidence interval: 0.015-0.057]). The highest transaminase value reported was 600 IU/L. Naranjo scores (2-3) suggested possible causation. Twenty-two case reports were identified. In 9 cases, the Naranjo score suggested probable causation (5-6). CONCLUSIONS: Hepatoxicity after therapeutic dosing of acetaminophen in children is rarely reported in defined-population studies. Case reports suggest that this phenomenon may occur, but few reports contain sufficient data to support a probable causal relationship. Pediatrics 2010;126:e1430-e1444
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