In vitro susceptibility of aerobic gram-negative blood culture isolates to oxolinic acid, norfloxacin, ciprofloxacin, enoxacin, pefloxacin, ofloxacin and oxo-enoxacin
- PMID: 2942489
- DOI: 10.1007/BF01643481
In vitro susceptibility of aerobic gram-negative blood culture isolates to oxolinic acid, norfloxacin, ciprofloxacin, enoxacin, pefloxacin, ofloxacin and oxo-enoxacin
Abstract
100 gram-negative strains isolated from blood cultures were selected for the evaluation of the in vitro activity of oxolinic acid, norfloxacin, ciprofloxacin, enoxacin, pefloxacin, ofloxacin and oxo-enoxacin. Ciprofloxacin showed the highest intrinsic activity. Oxo-enoxacin, the major metabolite of enoxacin, was 10-15-fold less active than enoxacin. Against Enterobacteriaceae and Vibrionaceae, all fluorinated quinolones except norfloxacin were equally effective, while against non-fermenters, ciprofloxacin and ofloxacin demonstrated greater activity than the others. Resistance to oxolinic acid had a detrimental effect on susceptibility to the new fluorinated quinolones.
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