A middle aged man with chronuc renal failure is diagnostic to have sputum positive pulmonary tuberculosis. His creatinine clearance is 25ml /min. All of the following drugs need modification in doses except
Refer Katzung 11/e p826 Rifamipicin is associated with bile Rifamipicin is secreted in bile So it does not require dose adjustment min renal failure
Isoniazid
Streptomycin
Rifamipicin
Ethambutol
Chemotherapy