Antituberculosis drug-induced hepatotoxicity: concise up-to-date review

J Gastroenterol Hepatol. 2008 Feb;23(2):192-202. doi: 10.1111/j.1440-1746.2007.05207.x. Epub 2007 Nov 6.

Abstract

The cornerstone of tuberculosis management is a 6-month course of isoniazid, rifampicin, pyrazinamide and ethambutol. Compliance is crucial for curing tuberculosis. Adverse effects often negatively affect the compliance, because they frequently require a change of treatment, which may have negative consequences for treatment outcome. In this paper we review the incidence, pathology and clinical features of antituberculosis drug-induced hepatotoxicity, discuss the metabolism and mechanisms of toxicity of isoniazid, rifampicin and pyrazinamide, and describe risk factors and management of antituberculosis drug-induced hepatotoxicity. The reported incidence of antituberculosis drug-induced hepatotoxicity, the most serious and potentially fatal adverse reaction, varies between 2% and 28%. Risk factors are advanced age, female sex, slow acetylator status, malnutrition, HIV and pre-existent liver disease. Still, it is difficult to predict what patient will develop hepatotoxicity during tuberculosis treatment. The exact mechanism of antituberculosis drug-induced hepatotoxicity is unknown, but toxic metabolites are suggested to play a crucial role in the development, at least in the case of isoniazid. Priorities for future studies include basic studies to elucidate the mechanism of antituberculosis drug-induced hepatotoxicity, genetic risk factor studies and the development of shorter and safer tuberculosis drug regimens.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Antitubercular Agents / adverse effects*
  • Chemical and Drug Induced Liver Injury*
  • Drug Therapy, Combination
  • Humans
  • Incidence
  • Isoniazid / adverse effects
  • Liver Diseases / pathology
  • Liver Diseases / physiopathology
  • Liver Diseases / therapy
  • Pyrazinamide / adverse effects
  • Rifampin / adverse effects
  • Risk Factors
  • Tuberculosis / drug therapy

Substances

  • Antitubercular Agents
  • Pyrazinamide
  • Isoniazid
  • Rifampin