In vitro activities of cloxyquin (5-chloroquinolin-8-ol) against Mycobacterium tuberculosis

The in vitro activities of cloxyquin (5-chloroquinolin-8-ol) against 9 standard strains and 150 clinical isolates of Mycobacterium tuberculosis were studied. The MICs ranged from 0.062 to 0.25 mu g/ml. The MIC,, and MIC,0 were 0.125 and 0.25 mu g/ml, respectively. These indicate that cloxyquin exhibited good antituberculosis activity, even for multidrug-resistant isolates.