Effect of enoxacin on colonic microflora of healthy volunteers

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Abstract
Ten healthy volunteers received 400 mg enoxacin orally twice daily for seven days. Fecal specimens were collected at 0, 2, 4, 7, 9, 11, 16 and 21 days to study the effect of enoxacin on the normal colonic microflora. On the seventh day the fecal mean concentration of enoxacin was 348 mg/kg feces. Whereas enterobacteria were strongly suppressed during the administration of enoxacin, the gram-positive and anaerobic microflora was not significantly altered. Two weeks after enoxacin was discontinued, the colonic microflora had returned to normal.