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Table 1 Minimum Inhibitory Concentrations (MICs) of Commonly Used Antibiotics against the Clostridium difficile Test Strain

From: Do piperacillin/tazobactam and other antibiotics with inhibitory activity against Clostridium difficile reduce the risk for acquisition of C. difficile colonization?

Antibiotic MIC (μg/mL)a
Imipenem 2
Meropenem 2
Ampicillin 2
Piperacillin/tazobactam 2
Sulfamethoxazole/trimethoprim 32
Tetracycline 0.5
Ciprofloxacin 128
Moxifloxacin 64
Ceftriaxone 32
Clindamycin >256
Metronidazole 0.25
Linezolid 0.5
  1. aMICs were determined by broth dilution. The test strain (VA 17) is an epidemic NAP1/027/BI strain