Efflux‐Pump–Derived Multiple Drug Resistance to Ethambutol Monotherapy inMycobacterium tuberculosisand the Pharmacokinetics and Pharmacodynamics of Ethambutol

Background. Ethambutol is used for the treatment of tuberculosis in cases where there is isoniazid resistance. We examined the emergence of drug resistance to ethambutol monotherapy in pharmacokinetic-pharmacodynamic studies of a hollow-fiber system.