title: [The influence of rifampicin upon the metabolism of isoniazid (author's transl)].
abstract: The authors sought to determine whether the combination of rifampicin and isoniazid altered the rate of acetylation of the latter drug by possible hepatic involvement. INH inactivation and transaminase levels were studied in 36 patients with tuberculosis, before and after 30 days of treatment with a combination of INH in a dose of 5 to 7 mg/kg/day and rifampicin in a dose of 600 mg/day. The results failed to confirm such a hypothesis since, whatever the phenotype of inactivation, no significant difference was seen between residual INH levels at 3 and 6 hours, before and after treatment, nor any significant increase in transaminases.
mesh_terms: D000107:Acetylation; D000293:Adolescent; D000328:Adult; D000368:Aged; D000410:Alanine Transaminase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D004347:Drug Interactions; D006801:Humans; D007538:Isoniazid / Q000378:metabolism* / Q000627:therapeutic use; D008099:Liver / Q000187:drug effects* / Q000201:enzymology; D008875:Middle Aged; D010641:Phenotype; D012293:Rifampin / Q000494:pharmacology* / Q000627:therapeutic use; D014397:Tuberculosis, Pulmonary / Q000188:drug therapy
chemical_list: D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D007538:Isoniazid; D012293:Rifampin
vernacular_title: Influence de la rifampicine sur le métabolisme de l'isoniazide.