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  1. Development Resources

Cefoxitin - Injection products

Recognized Interpretive Criteria

Exceptions to the recognized standard of CLSI M100

  Minimum Inhibitory
Concentrations
(mcg/mL)
Disk Diffusion
(zone diameter in mm)
Pathogen S I R S I R
Enterobacteriaceae ≤4 8 ≥16 - - -
Neisseria gonorrhoeae M100 standard is recognized
Anaerobes ≤4 8 ≥16      

S = Susceptible; I = Intermediate; R = Resistant
Susceptibility interpretive criteria for microorganisms are based on a dosing regimen of 2 grams every 6 hours