Oral/odontogenic

 

Usual Pathogens
Polymicrobial:

Streptococcus spp

H. influenzae

Anaerobes

 

Empiric Therapy Dose Duration
Surgical drainage    
+    
Ceftriaxone 1g IV daily 14-21 days
+    
Metronidazole 500mg IV q12h  
If MRSA risk factors, add:    
Vancomycin 15mg/kg IV q12h 14-21 days

Ceftriaxone allergy

Empiric Therapy Dose Duration
Levofloxacin 750mg IV daily 14-21 days
+    
Metronidazole 500mg IV q12h  
If MRSA risk factors, add:    
Vancomycin 15mg/kg IV q12h 14-21 days