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  • Title: Bactericidal activity of DU-6859a compared to activities of three quinolones, three beta-lactams, clindamycin, and metronidazole against anaerobes as determined by time-kill methodology.
    Author: Spangler SK, Jacobs MR, Appelbaum PC.
    Journal: Antimicrob Agents Chemother; 1997 Apr; 41(4):847-9. PubMed ID: 9087503.
    Abstract:
    The activities of DU-6859a, ciprofloxacin, levofloxacin, sparfloxacin, piperacillin, piperacillin-tazobactam, imipenem, clindamycin, and metronidazole against 11 anaerobes were tested by the broth microdilution and time-kill methods. DU-6859a was the most active drug tested (broth microdilution MICs, 0.06 to 0.5 microg/ml), followed by imipenem (MICs, 0.002 to 4.0 microg/ml). Broth macrodilution MICs were within 3 (but usually 1) dilutions of the broth microdilution MICs. All compounds were bactericidal at the MIC after 48 h; after 24 h, 90% killing was shown for all strains when the compounds were used at four times the MIC. DU-6859a at < or = 0.5 microg/ml was bactericidal after 48 h.
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