Outpatient
Amoxicillin-clavulanate (Augmentin)
Trimethoprim-sulfamethoxazole (Bactrim, Septra) and metronidazole (Flagyl)
Fluoroquinolone and metronidazole
Inpatient
Metronidazole or clindamycin (Cleocin)
	plus
Aminoglycoside (gentamicin [Garamycin] or tobramycin [Tobrex])
	or
Monobactam (aztreonam [Azactam])
	or
Third-generation cephalosporin (ceftriaxone [Rocephin], ceftazidime [Fortaz], cefotaxime [Claforan])
	alternatively
Second-generation cephalosporin (cefoxitin [Mefoxin], cefotetan [Cefotan])
Beta-lactamase inhibitor combinations (ampicillin-sulbactam [Unasyn], ticarcillin-clavulanate [Timentin])