General Spectrum of Activity

Gram positive

  •  Group A,B,C,G Streptococci

  •  S. pneumoniae

  •  viridans Streptococci

Gram negative

  •  Most Enterobacteriaceae

  •  H. influenzae

  •  M catarrhalis

  •  Pasteurella species

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