Meropenem

Predictable Activity

Actinomyces spp
Alcaligenes spp
Anaerobes (Gram positive and Gram negative)
ß-haemolytic Streptococci (Group A,B,C,G)
Cutibacterium acnes
Haemophilus influenzae
Haemophilus parainfluenzae
Enterobacterales
Erysipelothrix rhusiopathiae
Moraxella catarrhalis
Neisseria meningitidis
Pseudomonas aeruginosa
Staphylococcus aureus (MSSA)
Staphylococcus lugdunensis
Streptococcus pneumoniae (Pen-S, Pen-I)
Viridans group Streptococci

Unpredictable Activity

Acinetobacter spp
Aerobic Gram negative bacilli – nonfermenters
Aeromonas spp
Bacillus spp
Burkholderia cepacia
Corynebacterium spp
Lactobacillus spp
Listeria monocytogenes
Mycobacterium spp
Nocardia spp
Pseudomonas spp (other than P. aeruginosa)
Streptococcus pneumoniae (Pen-R)

No/Insufficient Activity

Chlamydia spp
Chryseobacterium spp
Enterobacterales with carbapenemase
Enterococcus spp
Legionella spp
Mycoplasma spp
Staphylococcus aureus (MRSA)
Stenotrophomonas maltophilia