| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococci (Viridans group + penicillin-susceptible) |
0.5 |
1 |
? － ? |
Quinupristin/Dalfopristin (Synercid)  |
39 |
| Streptococci (Viridans group + penicillin-susceptible) |
0.5 |
1 |
? － ? |
Vancomycin (Vancocyn, Lyphocin) |
39 |
| Streptococci (Viridans group + penicillin-susceptible) |
0.5 |
2 |
0.5 － 2 |
Levofloxacin (Levaquin, Quixin) |
19 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
1 |
0.5 － 1 |
Vancomycin (Vancocyn, Lyphocin) |
374 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
2 |
0.5 － 2 |
Levofloxacin (Levaquin, Quixin) |
117 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
2 |
1 － 2 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
374 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
2 |
? － ? |
Levofloxacin (Levaquin, Quixin) |
39 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
4 |
0.5 － 4 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
117 |
| Streptococci (Viridans group + penicillin-susceptible) |
1 |
8 |
≤0.015 － 8 |
Cefmetazole |
1396 |
| Streptococci (Viridans group + penicillin-susceptible) |
≤2 |
≤2 |
? － ? |
Amoxicillin-clavulanate |
39 |
| Streptococci (Viridans group + penicillin-susceptible) |
2 |
4 |
1 － 4 |
Ofloxacin (Floxin) |
19 |
| Streptococci (Viridans group + penicillin-susceptible) |
2 |
4 |
1 － 4 |
Ofloxacin (Floxin) |
117 |
| Streptococci (Viridans group + penicillin-susceptible) |
2 |
8 |
≤0.015 － 64 |
Levofloxacin (Levaquin, Quixin) |
1396 |
| Streptococci (Viridans group + penicillin-susceptible) |
2 |
8 |
1 － 8 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
19 |
| Streptococci (Viridans group + penicillin-susceptible) |
>4 |
>8 |
? － ? |
Tetracycline (Sumycin, Achromycin V, Steclin) |
39 |
| Streptococci (Viridans group + penicillin-susceptible) |
>128 |
>128 |
128 － >128 |
D-ofloxacin |
117 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
0.03 |
≤0.002 － 0.06 |
Dalbavancin |
1112 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
0.03 |
? － ? |
Dalbavancin |
1112 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
0.06 |
? － ? |
Teicoplanin (Targocid) |
1112 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
1 |
? － ? |
Linezolid (PNU-100766, U-100766, Zyvox) |
1112 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
1 |
? － ? |
Quinupristin/Dalfopristin (Synercid) |
1112 |
| Streptococci (Viridans group + penicillin-susceptible) |
- |
1 |
? － ? |
Vancomycin (Vancocyn, Lyphocin) |
1112 |
| Streptococci (Viridans group) |
0.008 |
0.015 |
0.004 － 0.03 |
ABT-492 |
3 |
| Streptococci (Viridans group) |
0.008 |
0.06 |
≤0.008 － 1 |
Cethromycin (ABT-773) |
950 |
| Streptococci (Viridans group) |
0.008 |
0.12 |
≤0.002 － 0.25 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
73 |
| Streptococci (Viridans group) |
0.03 |
0.12 |
0.008 － >4 |
Retapamulin |
120 |
| Streptococci (Viridans group) |
>0.03 |
>0.25 |
≤0.03 － >0.25 |
Clindamycin (Cleocin) |
73 |
| Streptococci (Viridans group) |
0.03 |
0.25 |
≤0.03 － 1 |
Imipenem |
371 |