JAC Advance Access originally published online on September 14, 2007
Journal of Antimicrobial Chemotherapy 2007 60(5):999-1003; doi:10.1093/jac/dkm346
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Comparative activity of pradofloxacin against anaerobic bacteria isolated from dogs and cats
1 MB Consult Limited, Lymington, SO41 3TQ, UK; 2 Department of Biomedical Sciences, University of Bradford, Bradford, UK; 3 Bayer HealthCare AG, Leverkusen, D-51368, Germany; 4 Don Whitley Scientific Ltd, Shipley, West Yorkshire, BD17 7SE, UK
Received 10 July 2007; returned 25 July 2007; revised 9 August 2007; accepted 10 August 2007
* Corresponding author. Tel: +44-1590-678700; Fax: +44-1590-678751; E-mail: p-s{at}mbconsult.co.uk
Objectives: To compare the intrinsic activity of pradofloxacin, a new fluoroquinolone developed for use in veterinary medicine, with other fluoroquinolones, against anaerobic bacteria isolated from dogs and cats.
Methods: One hundred and forty-one anaerobes were isolated from dogs and cats and comparative MICs of pradofloxacin, marbofloxacin, enrofloxacin, difloxacin and ibafloxacin were determined according to standardized agar dilution methodology.
Results: Pradofloxacin exerted the greatest antibacterial activity followed by marbofloxacin, enrofloxacin, difloxacin and ibafloxacin. Based on the distinctly lower MIC50, MIC90 and mode MIC values, pradofloxacin exhibited a higher in vitro activity than any of the comparator fluoroquinolones.
Conclusions: Pradofloxacin, a novel third-generation fluoroquinolone, has broad-spectrum anti-anaerobe activity and offers utility as single-drug therapy for mixed aerobic/anaerobic infections.
Keywords: fluoroquinolones , anaerobes , companion animals
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