Journal
PHARMACOTHERAPY
Volume 32, Issue 9, Pages 784-791Publisher
WILEY-BLACKWELL
DOI: 10.1002/j.1875-9114.2012.01122.x
Keywords
acetaminophen; alanine aminotransferase; ALT; ethanol; liver; adverse drug reactions; analgesia
Categories
Funding
- McNeil Consumer Healthcare to Denver Health
- National Institute on Drug Abuse [K08DA020573]
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Study Objective. To quantify the effect of therapeutic doses of acetaminophen on serum alanine aminotransferase (ALT) levels in subjects who consumed ethanol. Design. Systematic review of six randomized placebo-controlled trials, of which five were included in a meta-analysis. Subjects. Subjects included in the meta-analysis were those who consumed ethanol and received acetaminophen in doses up to 4 g/day (551 subjects) or placebo (350 subjects). Measurements and Main Results. A comprehensive literature search of the MEDLINE, EMBASE, and International Pharmaceutical Abstracts databases and the Cochrane Central Register of Controlled Trials was performed to identify randomized, placebo-controlled trials that enrolled subjects who consumed ethanol, received acetaminophen in therapeutic doses up to 4 g/day, and had serum ALT level measurements. A total of 184 articles were identified; six articles met all criteria. Five of the six articles reported ALT levels on study day 4 for both groups of subjects who received acetaminophen or placebo. Thus, for the meta-analysis, we used the primary outcome of mean change in serum ALT level from baseline to day 4 in the acetaminophen groups compared with the placebo groups. We found that the difference in mean change from baseline ALT levels between the acetaminophen and placebo groups on day 4 was 0.0 U/L (95% confidence interval -0.2-0.1 U/L). There were no reports of liver dysfunction, liver failure, or death in any of the trials. Conclusion. In randomized, placebo-controlled trials of subjects who consumed ethanol, no elevation of ALT level on study day 4 was noted when subjects ingested up to 4 g/day of acetaminophen.
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