Must cover typical polymicrobial oral flora and tailored based on patient's immune status
Most commonly a 3rd generation cehpalosporin + (clindamycin or metronidazole)
If the patient is immuncompromised, the antibiotics need to also cover MRSA and gram-negative rods
Ampicillin/Sulbactam 3g (50mg/kg) IV q6 hrs OR
Penicillin G 2-4 million units IV q6 hrs + Metronidazole 500 mg IV q6 hrs OR
Clindamycin 600 mg IV q6 hrs (option for those allergic to penicillin)
Cefepime 2 g IV q12 hrs + Metronidazole 500 mg IV q6 hrs OR
Meropenem 1 g IV q8 hrs OR
Imipenem/Cilastatin 500mg (20mg/kg) IV q6 hours
Piperacillin-tazobactam 4.5g (80mg/kg) IV q6 hours
Add Vancomycin 15-20 mg/kg IV q8 hrs (max 2 g per dose) if concern for MRSA risk factors
ENT antibiotics
Neuro antibiotics
GU antibiotics
Eye antibiotics
Cardiovascular antibiotics
Pediatric antibiotics
Antibiotics 
Skin and soft tissue antibiotics