Antimicrob Agents Chemother. 2008 Aug;52(8):2970-3. Epub 2008 May 19.

Postantibiotic effects and bactericidal activities of levofloxacin and gatifloxacin at concentrations simulating those of topical ophthalmic administration against fluoroquinolone-resistant and fluoroquinolone-sensitive methicillin-resistant Staphylococcus aureus strains.

Hoshi S, Kikuchi K, Sasaki T, Sotozono C, Kinoshita S, Hiramatsu K.

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Department of Infection Control Science, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.

Abstract

The bactericidal activities and postantibiotic effects (PAEs) of levofloxacin and gatifloxacin at concentrations corresponding to those in antibiotic eye drops against methicillin-resistant Staphylococcus aureus strains were determined. Levofloxacin and gatifloxacin at concentrations simulating those in eye drops showed lower bactericidal activities and shorter PAEs against fluoroquinolone-resistant strains than against fluoroquinolone-sensitive strains.

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Postantibiotic effects and bactericidal activities of levofloxacin and gatifloxacin at concentrations simulating those of topical ophthalmic administration against fluoroquinolone-resistant and fluoroquinolone-sensitive methicillin-resistant Staphylococcus aureus strains.

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