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  • Title: Activity of 13 beta-lactam agents combined with BRL 42715 against beta-lactamase producing gram-negative bacteria compared to combinations with clavulanic acid, tazobactam and sulbactam.
    Author: Piddock LJ, Jin YF, Turner HL.
    Journal: J Antimicrob Chemother; 1993 Jan; 31(1):89-103. PubMed ID: 8383105.
    Abstract:
    The activity of six cephalosporins, six penicillins and one monobactam combined with BRL 42715, clavulanic acid, sulbactam or tazobactam at 0.1, 0.5, 1, 2, 5 and 10 mg/L was determined for 45 beta-lactamase producing Gram-negative bacteria. The combination of BRL 42715 with any of the agents was more active than any of the other inhibitor and beta-lactam combinations. Unlike the other beta-lactamase inhibitors, BRL 42715 enhanced the activity of the beta-lactams for strains that constitutively expressed Richmond & Sykes Class I beta-lactamase and against strains expressing extended-spectrum plasmid-mediated beta-lactamases.
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