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Microorganism
MIC50
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MIC90
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Range
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Antimicrobial sort
Reference
Clostridium difficile 0.0015 - ? － ? Rifampicin (Rifampin) 1082
Clostridium difficile 0.004 - ? － ? Rifalazil (ABI-1648, KRM-1648) 1081
Clostridium difficile 0.006 - ? － ? Rifalazil (ABI-1648, KRM-1648) 1082
Clostridium difficile 0.0075 0.015 0.0038 － >16 Rifaximin (Xifaxan) 480
Clostridium difficile 0.0075 0.03 0.0019 － >16 Rifalazil (ABI-1648, KRM-1648) 480
Clostridium difficile <0.015 <0.015 <0.015 － ? ABT-492 3
Clostridium difficile 0.016 0.125 ≤0.016 － 0.25 OPT-80 241
Clostridium difficile 0.03 0.03 0.03 － ? Ranbezolid (RBX 7644) 1466
Clostridium difficile 0.06 0.125 0.03 － 0.5 Nitazoxanide 480
Clostridium difficile 0.06 0.125 ≤0.06 － 2 Tigecycline (GAR-936, Tigacyl) 497
Clostridium difficile 0.06 0.1285 0.015 － 0.5 Tizoxanide (TZO) 480
Clostridium difficile 0.06 0.25 ? － ? Clinafloxacin (PD 127391) 307
Clostridium difficile 0.06 1 0.03 － 256 Telithromycin (HMR 3647, RU-66647, Ketek) 948
Clostridium difficile 0.12 0.12 0.03 － 1 Sitafloxacin 12
Clostridium difficile 0.125 0.125 0.015 － 0.25 OPT-80 480
Clostridium difficile 0.125 0.125 ? － ? Metronidazole (Flagyl) 381
Clostridium difficile 0.125 0.25 0.025 － 0.5 Metronidazole (Flagyl) 480
Clostridium difficile 0.125 0.25 0.03 － 1 Tinidazole （Tindamax Fasigyn) 480
Clostridium difficile 0.125 0.25 0.06 － 1 Tigecycline (GAR-936, Tigacyl) 480
Clostridium difficile 0.125 0.25 0.125 － 0.25 Metronidazole (Flagyl) 948
Clostridium difficile 0.125 1 0.125 － 2 DX-619 1477
Clostridium difficile 0.125 4 ? － ? SCH29482 1385
Clostridium difficile 0.125 4 ? － ? SCH34343 1385
Clostridium difficile 0.25 0.25 0.12 － 8 Clinafloxacin (PD 127391) 12
Clostridium difficile 0.25 0.25 0.125 － 0.25 Teicoplanin (Targocid) 1466
Clostridium difficile 0.25 0.25 0.125 － 0.5 Dalbavancin 29
Clostridium difficile 0.25 0.25 0.125 － 0.5 Telavancin (TD-6424, Vibativ) 1457
Clostridium difficile 0.25 0.25 0.25 － 0.5 Metronidazole (Flagyl) 1469