Comparative In Vitro Activities and Postantibiotic Effects of the Oxazolidinone Compounds Eperezolid (PNU-100592) and Linezolid (PNU-100766) versus Vancomycin against Staphylococcus aureus , Coagulase-Negative Staphylococci, Enterococcus faecalis , and Enterococcus faecium | Zendy

Michael J. Rybak | Zendy; Diane M. Cappelletty | Zendy; Tabitha Moldovan | Zendy; Jeffrey R. Aeschlimann | Zendy; Glenn W. Kaatz | Zendy

Open Access

Comparative In Vitro Activities and Postantibiotic Effects of the Oxazolidinone Compounds Eperezolid (PNU-100592) and Linezolid (PNU-100766) versus Vancomycin against Staphylococcus aureus , Coagulase-Negative Staphylococci, Enterococcus faecalis , and Enterococcus faecium

Author(s) -

Michael J. Rybak,

Diane M. Cappelletty,

Tabitha Moldovan,

Jeffrey R. Aeschlimann,

Glenn W. Kaatz

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.42.3.721

Subject(s) - linezolid , enterococcus faecalis , microbiology and biotechnology , vancomycin , enterococcus faecium , staphylococcus aureus , enterococcus , staphylococcus epidermidis , coagulase , minimum inhibitory concentration , antibacterial agent , staphylococcus , biology , antibiotics , medicine , bacteria , genetics

The activities of the oxazolidinone antibacterial agents eperezolid (PNU-100592) and linezolid (PNU-100766) were compared with that of vancomycin against clinical isolates of methicillin-susceptible and -resistant Staphylococcus aureus (n = 200), coagulase-negative staphylococci (n = 100), and vancomycin-susceptible and -resistant Enterococcus faecalis and Enterococcus faecium (n = 50). Eperezolid and linezolid demonstrated good in vitro inhibitory activity, regardless of methicillin susceptibility for staphylococci (MIC at which 90% of the isolates are inhibited [MIC90] range, 1 to 4 microg/ml) or vancomycin susceptibility for enterococci (MIC90 range, 1 to 4 microg/ml). In time-kill studies, eperezolid and linezolid were bacteriostatic in action. A postantibiotic effect of 0.8+/-0.5 h was demonstrated for both eperezolid and linezolid against S. aureus, S. epidermidis, E. faecalis, and E. faecium.

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