<prompt> 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 exceptIsoniazidStreptomycinRifamipicinEthambutol  <response>: Refer Katzung 11e p826 Rifamipicin is associated with bile Rifamipicin is secreted in bile So it does not require dose adjustment min renal failure 