Mutant prevention concentrations of levofloxacin alone and in combination with azithromycin, ceftazidime, colistin (Polymyxin E), meropenem, piperacillin-tazobactam, and tobramycin against Pseudomonas aeruginosa

Antimicrob Agents Chemother. 2006 Jun;50(6):2228-30. doi: 10.1128/AAC.01620-05.

Abstract

The mutant prevention concentrations (MPCs) of levofloxacin alone and in combination with ceftazidime, colistin (polymyxin E), meropenem, piperacillin-tazobactam, and tobramycin were established against Pseudomonas aeruginosa. Antibiotic combinations using levofloxacin with any antibiotic with individual activity against P. aeruginosa resulted in synergistic lowering (an at-least-fourfold reduction) of the isolate's MPC.

Publication types

  • Comparative Study

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Azithromycin / pharmacology
  • Ceftazidime / pharmacology
  • Colistin / pharmacology
  • Dose-Response Relationship, Drug
  • Drug Synergism
  • In Vitro Techniques
  • Levofloxacin
  • Meropenem
  • Microbial Sensitivity Tests
  • Mutation / drug effects*
  • Ofloxacin / pharmacology
  • Penicillanic Acid / analogs & derivatives
  • Penicillanic Acid / pharmacology
  • Piperacillin / pharmacology
  • Piperacillin, Tazobactam Drug Combination
  • Pseudomonas aeruginosa / drug effects*
  • Pseudomonas aeruginosa / genetics*
  • Thienamycins / pharmacology
  • Tobramycin / pharmacology

Substances

  • Anti-Bacterial Agents
  • Thienamycins
  • Piperacillin, Tazobactam Drug Combination
  • Levofloxacin
  • Azithromycin
  • Penicillanic Acid
  • Ceftazidime
  • Ofloxacin
  • Meropenem
  • Tobramycin
  • Piperacillin
  • Colistin