clearance of phenytoin after i.v . injection of 100 mg was studied in six patients before and after 2 weeks daily treatment with 450 mg rifampicin , and in 14 patients with tuberculosis receiving standard treatment with 450 mg rifampicin , 300 mg isoniazid , and 1200 mg ethambutol daily .
C0041296
tuberculosis
C0035608
rifampicin