Intravenous Metronidazole Dosing for Acute Appendicitis
A single preoperative dose of metronidazole is recommended as prophylaxis for appendectomy in acute appendicitis. [1]
Medication Selection Algorithm
- Metronidazole monotherapy (IV) can be used for prophylaxis at the dosing below when enteric anaerobe coverage is needed. [1]
- Perioperative prophylaxis should be administered as a broad-spectrum regimen based on local practice patterns. [1]
Dosing for Adults
- Metronidazole IV prophylaxis dose: 1.5 g IV as a single dose. [1]
Dosing for Children
- Metronidazole IV prophylaxis dose: 20 mg/kg IV as a single dose. [1]
Monotherapy vs Combination Therapy
- Metronidazole may be used alone for prophylaxis dosing as specified, including when combined broad-spectrum coverage is not otherwise required in the regimen. [1]
Initiation Thresholds
- Prophylaxis should be given for appendectomy. [1]
- No postoperative antibiotics are recommended for uncomplicated appendicitis. [1]
Common Pitfalls to Avoid
- Postoperative intravenous metronidazole is not used for uncomplicated appendicitis, because postoperative antibiotics are not recommended in that setting. [1]
Targets and Goals of Therapy
- The goal of prophylactic metronidazole is perioperative anaerobic coverage for appendectomy. [1]