Abstrakt: |
The in-vitro activity of BRL-36650, a novel β-lactamase-stable penicillin was tested in comparison with that of cefotaxime, ceftazidime, aztreonam and imipenem against 559 multiply resistant Gram-negative organisms, some of which were also resistant to third generation cephalosporins. BRL-36650 and imipenem were the most active antibiotics. Against 342 Enterobacteriaceae the MICs were: imipenem 2 mg/l, BRL-36650 4 mg/l, aztreonam 8 mg/l and cefotaxime 32 mg/l. Against 122 the MICs were: BRL-36650 4 mg/l, imipenem 8 mg/l, aztreonam and ceftazidime 64 mg/l. [ABSTRACT FROM PUBLISHER] |