title: Butoxyethanol ingestion with prolonged hyperchloremic metabolic acidosis treated with ethanol therapy.
abstract: BACKGROUND
  Severe toxic ingestions of butoxyethanol (CAS No. 111-76-2) are rare despite the prevalence of this glycol ether in products such as glass and surface cleaners. Manifestations of acute butoxyethanol toxicity include metabolic acidosis, hemolysis, hepatorenal dysfunction, and coma, but vary widely in reported cases. Furthermore, the optimal therapeutic approach is not yet established. Much of the toxicity of butoxyethanol has been ascribed to its aldehyde and acid metabolites which are similar to those produced by oxidative metabolism of methanol and ethylene glycol. Although the roles of alcohol dehydrogenase inhibition with ethanol or fomepizole and hemodialysis are clear in the case of toxic ingestions of methanol and ethylene glycol, they remain poorly defined for butoxyethanol poisoning.
  
  
  METHODS
  We report the case of a 51-year-old female who ingested up to 8 ounces of Sanford Expo White Board Cleaner (butoxyethanol and isopropanol). She developed prolonged hyperchloremic metabolic acidosis and mental status depression and was treated with ethanol therapy but not hemodialysis. This patient recovered without apparent sequelae. The kinetics of butoxyethanol metabolism in this case are described and the potential therapeutic options are discussed.
authors.affiliation: Department of Emergency Medicine, and New Mexico Poison and Drug Information Center, University of New Mexico Health Sciences Center, Albuquerque 87131, USA. patmckin@unm.edu
authors.forename: P E
authors.initials: PE
authors.lastname: McKinney
authors.forename: R B
authors.initials: RB
authors.lastname: Palmer
authors.forename: W
authors.initials: W
authors.lastname: Blackwell
authors.forename: B E
authors.initials: BE
authors.lastname: Benson
mesh_terms: D000138:Acidosis / Q000139:chemically induced / Q000188:drug therapy*; D000818:Animals; D000431:Ethanol / Q000627:therapeutic use*; D005026:Ethylene Glycols / Q000097:blood / Q000378:metabolism / Q000493:pharmacokinetics / Q000506:poisoning*; D005260:Female; D006801:Humans; D008875:Middle Aged; D051381:Rats; D012997:Solvents / Q000506:poisoning; D013997:Time Factors
chemical_list: D005026:Ethylene Glycols; D012997:Solvents; D000431:Ethanol; C021296:2-ethoxyethanol