Cefoxitin

Predictable Activity

Actinomyces spp
ß-haemolytic Streptococci (Group A,B,C,G)
Klebsiella pneumoniae
Mycobacterium abscessus
Pasteurella spp
Streptococcus pneumoniae (Pen-S)

Unpredictable Activity

Anaerobic Gram negative bacilli

Anaerobic Gram positive cocci
Citrobacter koseri
Clostridium spp

Cutibacterium acnes
Escherichia coli
Klebsiella oxytoca
Mycobacterium fortuitum
Neisseria gonorrhoeae
Neisseria meningitidis
Proteus mirabilis
Staphylococcus aureus (MSSA)
Staphylococcus lugdunensis
Streptococcus pneumoniae (Pen-I)
Viridans group Streptococci

No/Insufficient Activity

Acinetobacter spp
Aerobic Gram negative bacilli – nonfermenters
Campylobacter spp
Chlamydia spp
Citrobacter freundii complex
Corynebacterium spp
Enterobacter spp
Enterobacterales with ESBL or carbapenemase
Enterococcus spp
Haemophilus influenzae
Haemophilus parainfluenzae
Lactobacillus spp
Legionella spp
Listeria monocytogenes
Morganella morganii
Mycobacterium chelonae
Mycoplasma spp
Nocardia spp
Proteus vulgaris complex
Providencia spp
Pseudomonas aeruginosa
Pseudomonas spp
Salmonella spp
Serratia spp
Shigella spp
Staphylococcus aureus (MRSA)
Stenotrophomonas maltophilia
Streptococcus pneumoniae (Pen-R)