Journal of Antimicrobial Chemotherapy (1987) 20, 363-372
© 1987 The British Society for Antimicrobial Chemotherapy
research-article |
Comparative in-virto activity of Ro 23-6240, a new trifluorinated quinolone
Diagnostic Microbiology Laboratory, Univ. Hosp. St. Rafaël, B-3000 Leuven, Belgium
Received 9 March 1987;
The in-virto activity of Ro 23-6240, a new quinolone, was tested in comparison with that of other quinolones aginst 486 recent clinical isolates. Ro 23-6240 displayed the typical features of the new quinolones: highest activity against Gram-negative bacilli, MBCs close to the MICs, minimum inoculum effect and rapid killing. Against Gram-negative organisms (Enterobacteriaceae, non-fermenters, Haemophilus influenzae and gonococci) the activity of Ro 23-6240 was between that of ofloxacin and norfloxacin; against staphylococci its activity was between that of ciprofloxacin and ofloxacin, and aginst streptococci it was similar to that of norfloxacin.