Early synergistic interactions between amikacin and six beta-lactam antibiotics against multiply resistant members of the family Enterobacteriaceae.
An in vitro comparison of the early synergistic interaction between amikacin and each of six beta-lactam antibiotics was made by using time-kill curves against 48 multiply resistant members of the family Enterobacteriaceae. Overall, these six combinations demonstrated early synergism (greater than or equal to 2 logs of increased kill after 7 h of incubation) against the 48 strains on 74% (range, 67 to 85%) of occasions; cefotaxime-amikacin and piperacillin-amikacin were the most efficacious combinations. Antagonism was not observed with any of the combinations against any of the 48 Enterobacteriaceae strains tested.
D000583:Amikacin / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004357:Drug Synergism; D004755:Enterobacteriaceae / Q000187:drug effects*; D007612:Kanamycin / Q000031:analogs & derivatives*; D008826:Microbial Sensitivity Tests; D047090:beta-Lactams
D000900:Anti-Bacterial Agents; D047090:beta-Lactams; D007612:Kanamycin; D000583:Amikacin