| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Prevotella nigrescens |
<=0.016 |
0.06 |
<=0.016 － >16 |
Clindamycin (Cleocin)  |
1474 |
| Prevotella nigrescens |
0.03 |
0.03 |
<=0.016 － 0.06 |
Imipenem |
1474 |
| Prevotella nigrescens |
≤0.03 |
≤0.03 |
≤0.03 － >32 |
Clindamycin (Cleocin) |
818 |
| Prevotella nigrescens |
0.03 |
0.06 |
<=0.016 － 0.125 |
Ertapenem (Invanz) |
1474 |
| Prevotella nigrescens |
0.03 |
0.06 |
<=0.016 － 0.125 |
Meropenem (Merrem) |
1474 |
| Prevotella nigrescens |
0.031 |
0.031 |
0.03 － 0.03 |
Imipenem |
53 |
| Prevotella nigrescens |
0.031 |
0.062 |
0.03 － 0.06 |
Doripenem (Doribax) |
53 |
| Prevotella nigrescens |
0.031 |
0.062 |
0.03 － 0.06 |
Ertapenem (Invanz) |
53 |
| Prevotella nigrescens |
0.062 |
0.062 |
0.03 － 0.06 |
Meropenem (Merrem) |
53 |
| Prevotella nigrescens |
0.12 |
4 |
0.03 － 8 |
Ceftriaxone (Rocephin) |
53 |
| Prevotella nigrescens |
<=0.125 |
<=0.125 |
<=0.125 － ? |
Piperacillin-Tazobactam (Zosyn) |
1474 |
| Prevotella nigrescens |
<=0.125 |
0.5 |
<=0.125 － 1 |
Amoxicillin-clavulanate |
1474 |
| Prevotella nigrescens |
0.125 |
1 |
≤0.015 － 1 |
Amoxicillin-clavulanic acid (Augmentin) |
818 |
| Prevotella nigrescens |
>0.125 |
>32 |
≤0.03 － >32 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
818 |
| Prevotella nigrescens |
0.5 |
0.5 |
0.5 － 0.5 |
Levofloxacin (Levaquin, Quixin) |
53 |
| Prevotella nigrescens |
0.5 |
1 |
0.06 － 2 |
Metronidazole (Flagyl) |
818 |
| Prevotella nigrescens |
0.5 |
1 |
0.25 － 1 |
Metronidazole (Flagyl) |
1474 |
| Prevotella nigrescens |
0.5 |
2 |
≤0.06 － >8 |
Levofloxacin (Levaquin, Quixin) |
818 |
| Prevotella nigrescens |
1 |
4 |
≤0.5 － >8 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
818 |
| Prevotella nigrescens |
>2 |
>32 |
0.06 － >32 |
Cefalexin (Keflex) |
818 |
| Prevotella nigrescens |
4 |
16 |
<=0.125 － 64 |
Ceftriaxone (Rocephin) |
1474 |
| Prevotella nigrescens |
8 |
32 |
0.125 － >32 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
818 |
| Prevotella nigrescens |
- |
- |
300 － ? |
Thymol |
872 |
| Prevotella nigrescens |
- |
- |
512 － ? |
Brazilian Propolis (Water-ethane extract) |
80 |
| Prevotella nigrescens |
- |
- |
1000 － ? |
Eugenol |
872 |
| Prevotella nigrescens (ATCC 25261) |
- |
- |
0.4 － ? |
Garlic (Essential oil) (Allicin) |
262 |
| Prevotella nigrescens (ATCC 33563) |
- |
- |
0.03 － ? |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
80 |
| Prevotella nigrescens (ATCC 33563) |
- |
- |
0.5 － ? |
Amoxicillin (Novamox, Amoxil) |
1458 |