title: Acute liver failure due to amoxicillin and amoxicillin/clavulanate.
abstract: The aim of our study is to report upon the presentation of two patients with life-threatening acute liver failure (ALF) due to amoxicillin and amoxicillin/clavulanate. A 59-year-old, Caucasian male presented with ALF 34 days after receiving amoxicillin/clavulanate. Despite aggressive supportive care, he died on hospital day 10. A 42-year-old, Caucasian female presented with ALF 21 days after receiving amoxicillin. She underwent successful liver transplantation on hospital day 19. In both cases, all competing causes of ALF had been excluded, liver pathology was consistent with drug-induced hepatitis, and cases were deemed "definite/highly probable" using causality assessment. Amongst 14 prior ALF/death cases due to amoxicillin/clavulanate, the mean age (62 years), male predominance (57%), and mean delay from drug cessation to presentation (17 days) is similar to what has been reported in patients with self-limited cholestatic hepatitis. Acute liver failure is a rare manifestation of amoxicillin and amoxicillin/clavulanate hepatotoxicity with no obvious clinical features at presentation portending a poor prognosis. Early transfer of patients with severe drug-induced hepatotoxicity (i.e., encephalopathy or coagulopathy) to a transplant center is recommended due to their poor likelihood of recovery.
authors.affiliation: Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan 48109-0362, USA. rfontana@umich.edu
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Fontana
authors.forename: A Obaid
authors.initials: AO
authors.lastname: Shakil
authors.forename: Joel K
authors.initials: JK
authors.lastname: Greenson
authors.forename: Ian
authors.initials: I
authors.lastname: Boyd
authors.forename: William M
authors.initials: WM
authors.lastname: Lee
mesh_terms: D000328:Adult; D019980:Amoxicillin-Potassium Clavulanate Combination / Q000009:adverse effects*; D000900:Anti-Bacterial Agents / Q000009:adverse effects*; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D017114:Liver Failure, Acute / Q000139:chemically induced* / Q000473:pathology / Q000628:therapy; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged
chemical_list: D000900:Anti-Bacterial Agents; D019980:Amoxicillin-Potassium Clavulanate Combination