Spectrum: Local Antimicrobial Stewardship, for Billings Clinic

Bacteroides fragilis

General Susceptibility

  • Metronidazole

  • Piperacillin-Tazobactam

  • Ampicillin-sulbactam

  • Amoxicillin-clavulanate

  • Carbapenems (should be reserved for polymicrobial infections with ESBL gram-negative organisms)

About half susceptible to clindamycin. Not reliable for empiric use.