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DuP 105 is an orally active oxazolidinone, a new class of synthetic antimicrobial agent with activity against gram-positive bacteria.

DuP 105 shows inhibitory activities against staphylococcal isolates and B. fragilis isolates with MIC90s of 4 to 16 μg/mL and 16 μg/mL[1]. DuP 105 MICs for 50% of the 216 gram-positive isolates tested (MIC50s) range from 4.0 to 16 μg/mL[2].

DuP 105 administered by either the oral or the parenteral route is protective against staphylococcal and streptococcal infections in mice with the 50% effective doses of 9 to 23 mg/kg[1].

[1]. Slee AM, et al. Oxazolidinones, a new class of synthetic antibacterial agents: in vitro and in vivo activities of DuP 105 and DuP 721. Antimicrob Agents Chemother. 1987 Nov;31(11):1791-7. [2]. Barry AL, et al. In vitro evaluation of DuP 105 and DuP 721, two new oxazolidinone antimicrobial agents. Antimicrob Agents Chemother. 1988 Jan;32(1):150-2.

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