therapeutic failure , i.e . no effect or at best only a minor effect on the symptoms , was registered in 10 of 13 cases of uti caused by staphylococcus saprophyticus and treated with nalidixic acid , which was consistent with the high minimum inhibitory concentrations ( mic ) ( 128-512 micrograms/ml ) of this antibiotic .
C0042029
of
C0027353
nalidixic acid