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. 2016 Sep 16;6:33642. doi: 10.1038/srep33642

Table 1. In vitro susceptibilities of 16 C. difficile isolates.

Cmpd MIC50 MIC90 MIC Range
Closantel 0.25 0.25 0.13–1
Rafoxanide 0.06 0.13 0.03–0.13
Niclosamide 1 2 0.5–4
Oxyclozanide 1 1 0.5–2
Metronidazole 0.25 0.25 0.13–0.25
Vancomycin 1 2 0.5–2

Abbreviations: MIC, minimum inhibitory concentration; MIC50 and MIC90, MIC at which 50% and 90% of the isolates are inhibited. All MIC values are expressed in μg/mL (n = 2).