Journal of Antimicrobial Chemotherapy, Vol 39, 23-27, Copyright © 1997 by The British Society for Antimicrobial Chemotherapy
SK Spangler, MR Jacobs and PC Appelbaum
A time-kill method was developed to examine the killing kinetics of
trovafloxacin, ciprofloxacin, sparfloxacin, metronidazole, cefoxitin,
piperacillin and piperacillin/tazobactam against one strain each of
Bacteroides fragilis, Bacteroides thetaiotaomicron, Prevotella
melaninogenica, Fusobacterium mortiferum, Peptostreptococcus magnus and
Clostridium perfringens. Solutions and suspensions were prepared inside an
anaerobic glove box, using syringes and prereduced broth. Bottles were then
incubated outside the chamber and viability counts determined after
incubation for 0, 6, 24 and 48 h in a shaking water bath, avoiding
introduction of air. Bacteriostatic/bactericidal concentrations (mg/L)
after 48 h for the six strains were: trovafloxacin, 0.03-1/0.03-1;
ciprofloxacin, 0.25-16/0.25-32; sparfloxacin, 0.06-2/0.06-8; metronidazole
1-64/1-64; cefoxitin, 0.125- 16/0.125-32; piperacillin, 0.125-64/0.125-64;
piperacillin/tazobactam, 0.06-2/0.125-8. Bacteriostatic levels were within
two dilutions of broth MICs. By this time-kill method, trovafloxacin had
the lowest bacteriostatic concentrations of all compounds tested.
ORIGINAL ARTICLES
Time-kill study of the activity of trovafloxacin compared with ciprofloxacin, sparfloxacin, metronidazole, cefoxitin, piperacillin and piperacillin/tazobactam against six anaerobes
Department of Pathology (Clinical Microbiology), Hershey Medical Center, PA 17033, USA.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
J. Brown and B. B Freeman III Combining Quinupristin/Dalfopristin with Other Agents for Resistant Infections Ann. Pharmacother., April 1, 2004; 38(4): 677 - 685. [Abstract] [Full Text] [PDF] |
||||
![]() |
K. L. Credito, M. R. Jacobs, and P. C. Appelbaum Time-Kill Studies of the Antianaerobe Activity of Garenoxacin Compared with Those of Nine Other Agents Antimicrob. Agents Chemother., April 1, 2003; 47(4): 1399 - 1402. [Abstract] [Full Text] [PDF] |
||||

