RESUMEN
To study the incidence of drug induced hepatitis due to antituberculosis therapy. Descriptive study. Department of Internal medicine, Isra University Hospital Hyderabad, from January 2004 to December 2004. Medical records of all patients treated with antituberculosis therapy were ret rospectively reviewed. 215 patients were treated and 18 [8.4%] patients developed hepatitis. Rifctmpicin caused hepatitis in 2 [0.9%] patients. Isoniazid caused hepatitis in 11 [5.4%] cases. In 5 [2.3%] cases causative drug was unknown. In these cases, the patient died [four cases] or was lost to follow up [one case]. Among 215 treated cases, 4 patients [1.86%] died. Patients should be carefully monitored for the side effects of antituberculous sis chemotherapy