Gram positive:
- Group A,B,C,G Streptococci
- S. pneumoniae
- Viridans Streptococci
Gram negative:
- Most Enterobacteriaceae
- H. influenzae
- M. catarrhalis
- Pasteurella spp.
Anaerobes:
- Prevotella melaninogenica
- Clostridium (not C. difficile)
- Peptostreptococci
Does not cover:
- Enterococci
- B. fragilis
- Pseudomonas and other more resistant gram negatives
- ESBL or AmpC producing Enterobacteriaceae
- Listeria
- Not the agent of choice for staphylococcal infections