Table 3.

Bactericidal activities of levofloxacin, ciprofloxacin, gentamicin, and ceftazidime against nongrowing P. aeruginosa

Drug and concnBacterial count (log10 CFU/ml) ata:
3 h6 h24 h
None (control)5.845.785.30
Levofloxacin
 MIC3.572.793.10
 4× MIC2.081.601.78
 16× MIC1.30<1.00<1.00
Ciprofloxacin
 MIC4.073.472.14
 4× MIC3.272.481.48
 16× MIC2.231.78<1.00
Gentamicin
 MIC5.625.184.60
 4× MIC5.664.843.19
 16× times MIC5.514.62<1.00
Ceftazidime
 MIC5.725.474.86
 4× MIC5.805.414.43
 16× times MIC5.555.324.65
  • a At 0 h, the bacterial count was 6.15 log10 CFU/ml.