title: The safety of valproic acid use for patients with hepatitis C infection.
abstract: OBJECTIVE
  Valproic acid is frequently not recommended for patients with hepatic dysfunction. The authors evaluated the association between hepatitis C and alanine aminotransferase (ALT) values during valproic acid treatment.
  
  
  METHODS
  ALT changes in 564 individuals beginning valproic acid treatment were examined. Changes among those with positive hepatitis C status were compared with changes among patients with positive hepatitis C status who were taking other psychotropic agents.
  
  
  RESULTS
  ALT elevations with valproic acid were significantly greater among patients with positive hepatitis C status than those with negative or unknown status. Among patients with positive hepatitis C status, ALT increases did not differ significantly between valproic acid and other medications.
  
  
  CONCLUSIONS
  Use of valproic acid may be possible for some patients with hepatitis C. ALT increases in seropositive patients may be partially related to chronic hepatitis infection. However, ALT levels should be closely monitored in all hepatitis C patients taking valproic acid.
authors.affiliation: Department of Veteran Affairs Puget Sound Health Care System, MHC/116, 1660 South Columbian Way, Seattle, WA 98108-1597, USA. bradford.felker@med.va.gov
authors.forename: Bradford L
authors.initials: BL
authors.lastname: Felker
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Sloan
authors.forename: Jason A
authors.initials: JA
authors.lastname: Dominitz
authors.forename: Robert F
authors.initials: RF
authors.lastname: Barnes
mesh_terms: D000328:Adult; D000410:Alanine Transaminase / Q000097:blood*; D056486:Chemical and Drug Induced Liver Injury / Q000175:diagnosis / Q000209:etiology*; D005260:Female; D005500:Follow-Up Studies; D006526:Hepatitis C / Q000150:complications*; D006801:Humans; D008111:Liver Function Tests; D008297:Male; D001523:Mental Disorders / Q000188:drug therapy*; D008875:Middle Aged; D012306:Risk; D014635:Valproic Acid / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D014635:Valproic Acid; D000410:Alanine Transaminase