General Spectrum of Activity

Gram positive: Most Streptococci, Enterococcus faecalis, Staph aureus (MSSA)

Gram negative: Many Enterobacteriaceae, Neisseria spp. Haemophilus, Moraxella, Pasteurella

Anaerobes: Bacteroides fragilis, Prevotella, non-difficile Clostridia, Peptostreptococci, Actinomyces