| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Enterococcus faecalis (Periapical lesions) |
0.5 |
0.75 |
0.25 － 0.75 |
Amoxicillin (Novamox, Amoxil)  |
407 |
| Enterococcus faecalis (Periapical lesions) |
0.5 |
0.75 |
0.25 － 0.75 |
Amoxicillin-clavulanic acid (Augmentin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
0.5 |
32 |
0.19 － >256 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
1 |
1.5 |
0.38 － 2 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
407 |
| Enterococcus faecalis (Periapical lesions) |
1 |
2 |
0.38 － >256 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
2 |
3 |
1 － 4 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
3 |
3 |
1 － 4 |
Vancomycin (Vancocyn, Lyphocin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
4 |
6 |
3 － >256 |
Chloramphenicol (Chloromycetin) |
407 |
| Enterococcus faecalis (Periapical lesions) |
4 |
24 |
2 － >256 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
407 |
| Enterococcus faecalis (pig isolate) |
0.78 |
1.56 |
0.39 － 1.56 |
Ampicillin (Omnipen) |
1030 |
| Enterococcus faecalis (pig isolate) |
1.56 |
1.56 |
0.78 － 3.13 |
Enrofloxacin |
1030 |
| Enterococcus faecalis (pig isolate) |
1.56 |
3.13 |
0.78 － 3.13 |
Vancomycin (Vancocyn, Lyphocin) |
1030 |
| Enterococcus faecalis (pig isolate) |
3.13 |
3.13 |
1.56 － 6.25 |
Ofloxacin (Floxin) |
1030 |
| Enterococcus faecalis (pig isolate) |
6.25 |
12.5 |
3.13 － 12.5 |
Virginiamycin |
1030 |
| Enterococcus faecalis (pig isolate) |
12.5 |
50 |
6.25 － >100 |
Chloramphenicol (Chloromycetin) |
1030 |
| Enterococcus faecalis (pig isolate) |
>50 |
>100 |
0.78 － >100 |
Oxytetracycline (Terramycin, Oxitetracycline) |
1030 |
| Enterococcus faecalis (pig isolate) |
>100 |
>100 |
0.1 － >100 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
1030 |
| Enterococcus faecalis (pig isolate) |
>100 |
>100 |
1.56 － >100 |
Tylosin |
1030 |
| Enterococcus faecalis (pig isolate) |
>100 |
>100 |
25 － >100 |
Lincomycin (Lincocin) |
1030 |
| Enterococcus faecalis (PIU 1967) |
- |
- |
16 － ? |
A-692345 |
437 |
| Enterococcus faecalis (PIU 1967) |
- |
- |
>64 － ? |
A-72310 |
437 |
| Enterococcus faecalis (quinolone-resistant) |
0.25 |
0.5 |
0.06 － 1 |
ABT-492 |
3 |
| Enterococcus faecalis (quinolone-resistant) |
4 |
16 |
0.25 － 16 |
Trovafloxacin (Trovan) |
3 |
| Enterococcus faecalis (quinolone-resistant) |
4 |
16 |
1 － 32 |
Levofloxacin (Levaquin, Quixin) |
3 |
| Enterococcus faecalis (quinolone-resistant) |
64 |
128 |
2 － 128 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
3 |
| Enterococcus faecalis (quinolone-susceptible) |
0.03 |
0.03 |
0.015 － 0.03 |
ABT-492 |
3 |
| Enterococcus faecalis (quinolone-susceptible) |
0.5 |
1 |
0.25 － 1 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
3 |
| Enterococcus faecalis (quinolone-susceptible) |
0.5 |
1 |
0.5 － 1 |
Levofloxacin (Levaquin, Quixin) |
3 |