“… GSH and antioxidant enzymes "superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), gultathionle peroxidase (GPx) and glutathione …-transferase (GST) were noticed in the liver of antitubercular chemotherapeutic agents (namely isoniazid, rifampicin and pyrazinamide ) treated animals accompanied with an increase in cytochrome …-450 contents and increased production of lipid peroxidation.”