Polymicrobial
+/- Anaerobes
Ceftriaxone 1g IV q24h
ADD
Metronidazole 500mg PO/IV q8h
If periodontal disease, putrid sputum, necrotizing pneumonia or lung abscess
Moxifloxacin 400mg PO/IV q24h
OR
Amox/Clav
500mg PO q8h OR 875mg PO q12h
7 days if uncomplicated
If lung abscess, longer therapy (>3-4 weeks) required dependent on clinical and radiologic response