title: Inconsistency of synergy between the beta-lactamase inhibitor CP-45,899 and beta-lactam antibiotics against multiply drug-resistant Enterobacteriaceae and pseudomonas species.
abstract: Synergy between CP-45,899 and ampicillin or newer beta-lactam antibiotics against multiply drug-resistant Enterobacteriaceae and Pseudomonas species was inconsistent. In contrast, synergy between CP-45,899 and ampicillin against beta-lactamase-producing strains of Haemophilus influenzae type b and Bacteroides fragilis was consistent and marked.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004357:Drug Synergism; D004755:Enterobacteriaceae / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D010397:Penicillanic Acid / Q000494:pharmacology*; D011549:Pseudomonas / Q000187:drug effects*; D013407:Sulbactam; D065093:beta-Lactamase Inhibitors; D047090:beta-Lactams / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D065093:beta-Lactamase Inhibitors; D047090:beta-Lactams; D010397:Penicillanic Acid; D013407:Sulbactam