Options:
Metronidazole 500mg PO Q8hrs AND Ciprofloxacin 500mg PO BID x5days
Amoxicillin/Clavulanate 875/125 PO Q8hrs x5days (or Augmentin XR 2 tablets BID [each tablet 1gm amoxicillin 62.5mg clavulanate])
Trimethoprim/Sulfamethoxazole, one double-strength tablet bid, and Metronidazole 500 mg Q8h
Moxifloxacin 400mg PO QDaily
Options:
Ticarcillin/Clavulanate 3.1 g IV Q6h or
Piperacillin/Tazobactam 3.375 g IV q6 hours x 7-10 days
Ciprofloxacin 400 mg IV q12h and metronidazole 1 g IV Q12h
Ampicillin 2 g IV Q6h and Metronidazole 500 mg IV q6h Plus (Gentamicin 7 mg/kg Q24h or Ciprofloxacin 400 mg IV Q12h)
Imipenem 500 mg IV Q6h
GI antibiotics
Sepsis antibiotics
GU antibiotics
Antiemetics
Proton-pump inhibitor
Analgesics and sedatives 
OB/GYN antibiotics
Biliary ultrasound