rifampin has been studied in 68 patients and results can be summarized as follows : * there has been no evidence of significant toxicity . * in a randomized study of active tuberculosis patients who had not received prior chemotherapy , isoniazid-rifampin and isoniazid-aminosalicylic acid regiments were equally effective . * in retreatment patients with active , positive tuberculosis , the regimen of isoniazid , rifampin , and ethambutol proved to be very effective , especially when the two latter drugs had not been used previously . * in patients with pulmonary infections caused by atypical acid-fast bacilli , results varied with the organism isolated and the extent of disease .
C0041296
tuberculosis
C0014964
ethambutol