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Microorganism
MIC50
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MIC90
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Range
(μg/ml)		 sort
Antimicrobial sort
Reference
Clostridium difficile ≤0.25 ≤0.25 ≤0.25 － ? Minocycline (Minocycline hydrochloride, Minocin) 462
Clostridium difficile ≤0.25 ≤0.25 ≤0.25 － ? Tigecycline (GAR-936, Tigacyl) 462
Clostridium difficile 0.25 0.5 0.06 － 0.5 Ramoplanin 480
Clostridium difficile 0.25 0.5 ≤0.125 － 0.5 Metronidazole (Flagyl) 241
Clostridium difficile 0.25 0.5 0.125 － 1 Metronidazole (Flagyl) 29
Clostridium difficile 0.25 0.5 0.25 － 0.5 Metronidazole (Flagyl) 268
Clostridium difficile 0.25 0.5 0.25 － 0.5 Metronidazole (Flagyl) 1473
Clostridium difficile 0.25 0.5 0.25 － 0.5 Metronidazole (Flagyl) 1466
Clostridium difficile 0.25 1 0.25 － 2 Quinupristin/Dalfopristin (Synercid) 1457
Clostridium difficile 0.25 2 0.125 － 16 Virginiamycin 764
Clostridium difficile 0.25 4 0.25 － 4 ACH-702 1279
Clostridium difficile 0.25 16 0.25 － 256 Erythromycin (E-mycin, Ery-tab, Benzamycin) 948
Clostridium difficile 0.25 >32 0.06 － >32 Telithromycin (HMR 3647, RU-66647, Ketek) 1460
Clostridium difficile 0.25 64 0.125 － 128 Tylosin 764
Clostridium difficile 0.5 0.5 0.06 － 0.5 Teicoplanin (Targocid) 241
Clostridium difficile 0.5 0.5 0.25 － 1 Metronidazole (Flagyl) 1460
Clostridium difficile 0.5 0.5 0.25 － 1 Metronidazole (Flagyl) 1474
Clostridium difficile ≤0.5 ≤0.5 ≤0.5 － ? Metronidazole (Flagyl) 462
Clostridium difficile 0.5 1 ≤0.06 － 1 Metronidazole (Flagyl) 497
Clostridium difficile 0.5 1 0.125 － 1 Daptomycin + 50 μg/ml Ca++ 490
Clostridium difficile 0.5 1 0.25 － 2 Vancomycin (Vancocyn, Lyphocin) 1457
Clostridium difficile 0.5 1 0.25 － 4 Metronidazole (Flagyl) 1470
Clostridium difficile 0.5 2 0.5 － 2 Amoxicillin-clavulanate 1469
Clostridium difficile 0.5 2 0.5 － 2 Daptomycin (Cubicin) 1457
Clostridium difficile 0.5 4 0.25 － 8 Quinupristin/Dalfopristin (Synercid) 29
Clostridium difficile 0.5 4 ? － ? Piperacillin (Pipracil) 381
Clostridium difficile 0.5 16 ? － ? Cefamandole (Mandol) 1389
Clostridium difficile 0.5 >32 0.125 － >32 Clarithromycin (Biaxin) 1460