Pharmacokinetics of isoniazid in moderately malnourished children with tuberculosis

Int J Tuberc Lung Dis. 2010 Mar;14(3):374-6.


Severe malnutrition is known to affect the pharmacokinetics of isoniazid (INH) in children. However, the effect of moderate malnutrition, which may be more prevalent, is not known. INH was administered to 20 children with tuberculosis at a single dose of 5 mg/kg, and serial blood samples were collected. The serum INH concentrations were higher in the undernourished group but the pharmacokinetic parameters were comparable with those in the normal nutrition group. Weight gain was significantly more in the undernourished group after 1 month of treatment. The study suggests that INH pharmacokinetics may not be significantly altered in children with moderate malnutrition.

Publication types

  • Clinical Trial

MeSH terms

  • Antitubercular Agents / pharmacokinetics*
  • Antitubercular Agents / therapeutic use
  • Child
  • Child Nutrition Disorders / complications*
  • Child, Preschool
  • Female
  • Humans
  • India / epidemiology
  • Isoniazid / pharmacokinetics*
  • Isoniazid / therapeutic use
  • Male
  • Severity of Illness Index
  • Tuberculosis / complications
  • Tuberculosis / drug therapy*
  • Weight Gain


  • Antitubercular Agents
  • Isoniazid