title: [Ciprofloxacin in combination with other antimicrobial substances].
abstract: The antibacterial activity of ciprofloxacin, either alone or in combination with azlocillin, imipenem, mezlocillin or tobramycin, was tested against enterococcus and pseudomonas species. No synergy or antagonism was found by means of the checkerboard titration method used. Subsequently, the bactericidal activity of ciprofloxacin (2 x minimal inhibitory concentration, MIC), azlocillin, imipenem, mezlocillin or tobramycin (2 x MIC) either alone or in combination (1 x MIC each of each substance) was tested against individual strains. No reduction of bactericidal activity in comparison with the effect of the single substances at higher concentration was found, even though the concentrations of each substance were halved. An antagonism is unlikely when ciprofloxacin is combined with one of the beta-lactams studied or with tobramycin. More likely is a slight synergistic effect.
authors.affiliation: Arbeitsgruppe Infektiologie, Zentrum der Inneren Medizin, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt/Main.
authors.forename: P M
authors.initials: PM
authors.lastname: Shah
authors.forename: D
authors.initials: D
authors.lastname: Mellinghoff
authors.forename: W
authors.initials: W
authors.lastname: Stille
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001390:Azlocillin / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002939:Ciprofloxacin / Q000494:pharmacology*; D004347:Drug Interactions; D015378:Imipenem; D008802:Mezlocillin / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D013845:Thienamycins / Q000494:pharmacology; D014031:Tobramycin / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D013845:Thienamycins; D002939:Ciprofloxacin; D015378:Imipenem; D001390:Azlocillin; D008802:Mezlocillin; D014031:Tobramycin
vernacular_title: Ciprofloxacin in Kombination mit anderen antimikrobiell wirksamen Substanzen.