Postantibiotic Effect and Postantibiotic Sub-MIC Effect of Levofloxacin Compared to Those of Ofloxacin, Ciprofloxacin, Erythromycin, Azithromycin, and Clarithromycin against 20 Pneumococci | Zendy

S K Spangler | Zendy; Gengrong Lin | Zendy; Michael R. Jacobs | Zendy; Peter C. Appelbaum | Zendy

Open Access

Postantibiotic Effect and Postantibiotic Sub-MIC Effect of Levofloxacin Compared to Those of Ofloxacin, Ciprofloxacin, Erythromycin, Azithromycin, and Clarithromycin against 20 Pneumococci

Author(s) -

S K Spangler,

Gengrong Lin,

Michael R. Jacobs,

Peter C. Appelbaum

Publication year - 1998

Publication title -

antimicrobial agents and chemotherapy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.07

H-Index - 259

eISSN - 1070-6283

pISSN - 0066-4804

DOI - 10.1128/aac.42.5.1253

Subject(s) - ofloxacin , levofloxacin , ciprofloxacin , clarithromycin , erythromycin , quinolone , azithromycin , antibacterial agent , microbiology and biotechnology , minimum inhibitory concentration , antibiotics , pharmacology , chemistry , medicine , biology

The postantibiotic effect (PAE) (10 times the MIC of quinolones, 5 times the MIC of macrolides) and postantibiotic sub-MIC effect (PAE-SME) at 0.125, 0.25, and 0.5 times the MIC were determined for levofloxacin, ciprofloxacin, ofloxacin, erythromycin, azithromycin, and clarithromycin against 20 pneumococci. Quinolone PAEs ranged between 0.5 and 6.5 h, and macrolide PAEs ranged between 1 and 6 h. Measurable PAE-SMEs (in hours) at the three concentrations were 1 to 5, 1 to 8, and 1 to 8, respectively, for quinolones and 1 to 8, 1 to 8, and 1 to 6, respectively, for macrolides.

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