Classification: Broad Spectrum

Gram positive

• Streptococci (including S. pneumoniae)

• MSSA

Gram negative

• Many Enterobacteriaceae

• N. meningitidis

• Moraxella

• H. influenzae

• Legionella

• Pasteurella

Anaerobic

• Limited spectrum

• Add metronidazole if suspect anaerobic involvement

• Non-difficile Clostridia

• Prevotella

• Peptostreptococci

Other

• Mycoplasma

• Chlamydophila

Does not cover

• Many Staphylococci (MRSA)

• Enterococci