| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Bacteroides fragilis (group) |
4 |
4 |
0.5 － 32 |
Chloramphenicol (Chloromycetin)  |
1475 |
| Bacteroides fragilis (group) |
4 |
8 |
1 － 8 |
Chloramphenicol (Chloromycetin) |
1468 |
| Bacteroides fragilis (group) |
4 |
8 |
2 － 8 |
Chloramphenicol (Chloromycetin) |
1399 |
| Bacteroides fragilis (group) |
4 |
8 |
2 － 16 |
Linezolid (PNU-100766, U-100766, Zyvox) |
1476 |
| Bacteroides fragilis (group) |
4 |
16 |
0.008 － >64 |
Clindamycin (Cleocin) |
1473 |
| Bacteroides fragilis (group) |
4 |
16 |
0.01 － >=256 |
Cefoperazone/Sulbactam |
1480 |
| Bacteroides fragilis (group) |
4 |
16 |
<=0.25 － 16 |
Metronidazole (Flagyl) |
1453 |
| Bacteroides fragilis (group) |
4 |
32 |
<=0.125 － >128 |
Piperacillin-Tazobactam (Zosyn) |
1469 |
| Bacteroides fragilis (group) |
4 |
32 |
<=0.25 － >=512 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
1453 |
| Bacteroides fragilis (group) |
4 |
64 |
0.03 － >=256 |
Ceftizoxime (Cefizox) |
1480 |
| Bacteroides fragilis (group) |
4 |
64 |
0.25 － >128 |
Moxalactam (Latamoxef) |
1399 |
| Bacteroides fragilis (group) |
>8 |
>8 |
2 － >8 |
Quinupristin/Dalfopristin (Synercid) |
1466 |
| Bacteroides fragilis (group) |
8 |
16 |
<=0.25 － 64 |
Silver nitrate |
1453 |
| Bacteroides fragilis (group) |
8 |
32 |
<=0.03 － >128 |
Piperacillin-Tazobactam (Zosyn) |
1475 |
| Bacteroides fragilis (group) |
8 |
32 |
<=0.06 － 256 |
Cefoxitin (Mefoxin) |
1468 |
| Bacteroides fragilis (group) |
8 |
32 |
<=0.25 － 64 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
1453 |
| Bacteroides fragilis (group) |
8 |
32 |
<=0.25 － >=512 |
Cadmium sulfate |
1453 |
| Bacteroides fragilis (group) |
8 |
32 |
2 － >32 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
1469 |
| Bacteroides fragilis (group) |
8 |
64 |
<=0.25 － >=512 |
Ampicillin (Omnipen) |
1453 |
| Bacteroides fragilis (group) |
8 |
64 |
<=0.25 － >=512 |
Cefoxitin (Mefoxin) |
1453 |
| Bacteroides fragilis (group) |
8 |
>128 |
0.06 － >128 |
Clindamycin (Cleocin) |
1475 |
| Bacteroides fragilis (group) |
8 |
128 |
0.12 － >=256 |
Piperacillin (Pipracil) |
1480 |
| Bacteroides fragilis (group) |
8 |
128 |
0.5 － >=256 |
Mezlocillin (Mezlin) |
1480 |
| Bacteroides fragilis (group) |
8 |
>=256 |
0.06 － >=256 |
Cefotaxime (Cephotaxime, Claforan) |
1480 |
| Bacteroides fragilis (group) |
8 |
>=256 |
0.06 － >=256 |
Cefotetan (Cefotan) |
1480 |
| Bacteroides fragilis (group) |
8 |
>=256 |
0.25 － >=256 |
Ceftriaxone (Rocephin) |
1480 |
| Bacteroides fragilis (group) |
>16 |
>16 |
16 － >16 |
Teicoplanin (Targocid) |
1466 |
| Bacteroides fragilis (group) |
>16 |
>16 |
>16 － ? |
Vancomycin (Vancocyn, Lyphocin) |
1466 |