| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococcus spp. (Viridans group) |
0.5 |
1 |
≤0.12 － 2 |
Quinupristin/Dalfopristin (Synercid)  |
462 |
| Streptococcus spp. (Viridans group) |
0.5 |
1 |
0.12 － 2 |
Quinupristin/Dalfopristin (Synercid) |
446 |
| Streptococcus spp. (Viridans group) |
0.5 |
8 |
0.016 － 16 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
493 |
| Streptococcus spp. (Viridans group) |
0.5 |
- |
0.03 － 16 |
Doxycycline (Doxycycline hyclate, Doxy, Vibra, Vibramycin) |
248 |
| Streptococcus spp. (Viridans group) |
0.78 |
100 |
0.1 － 100 |
Ampicillin (Omnipen) |
326 |
| Streptococcus spp. (Viridans group) |
1 |
1 |
0.25 － 1 |
Levofloxacin (Levaquin, Quixin) |
225 |
| Streptococcus spp. (Viridans group) |
1 |
2 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
307 |
| Streptococcus spp. (Viridans group) |
1 |
4 |
0.06 － 8 |
Zosyn |
102 |
| Streptococcus spp. (Viridans group) |
>1 |
>8 |
≤0.06 － >8 |
Minocycline (Minocycline hydrochloride, Minocin) |
462 |
| Streptococcus spp. (Viridans group) |
1 |
- |
0.06 － 8 |
Cefazolin (Ancef, Kefzol, Zolicef) |
248 |
| Streptococcus spp. (Viridans group) |
1 |
- |
1 － 2 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
248 |
| Streptococcus spp. (Viridans group) |
2 |
4 |
0.25 － 8 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
102 |
| Streptococcus spp. (Viridans group) |
2 |
4 |
0.5 － >4 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
462 |
| Streptococcus spp. (Viridans group) |
3.12 |
3.12 |
0.78 － 3.12 |
Vancomycin (Vancocyn, Lyphocin) |
326 |
| Streptococcus spp. (Viridans group) |
>4 |
>8 |
0.12 － >8 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
462 |
| Streptococcus spp. (Viridans group) |
12.5 |
25 |
0.05 － 25 |
Gentamicin (Gentamycin, Garamycin) |
326 |
| Streptococcus spp. (Viridans group) |
50 |
100 |
1.56 － 100 |
Streptomycin |
326 |
| Streptococcus spp. (Viridans group) |
310 |
2500 |
310 － 2500 |
Propolis (Ethanol extract) |
326 |
| Streptococcus spp. (Viridans group) |
- |
0.125 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
66 |
| Streptococcus spp. (Viridans group) |
- |
0.19 |
? － ? |
Moxifloxacin (BAY 12-8039, Avelox) |
66 |
| Streptococcus spp. (Viridans group) |
- |
0.216 |
? － ? |
Gatifloxacin (Tequin) |
50 |
| Streptococcus spp. (Viridans group) |
- |
0.38 |
? － ? |
Gatifloxacin (Tequin) |
66 |
| Streptococcus spp. (Viridans group) |
- |
0.73 |
? － ? |
Moxifloxacin (BAY 12-8039, Avelox) |
50 |
| Streptococcus spp. (Viridans group) |
- |
1 |
? － ? |
Levofloxacin (Levaquin, Quixin) |
66 |
| Streptococcus spp. (Viridans group) |
- |
4 |
? － ? |
Ofloxacin (Floxin) |
66 |
| Streptococcus spp. (Viridans group) |
- |
- |
0.005 － 0.2 |
Clindamycin (Cleocin) |
982 |
| Streptococcus spp. (Viridans group) |
- |
- |
0.005 － 0.2 |
Clindamycin (Cleocin) |
961 |
| Streptococcus spp. (Viridans group) |
- |
- |
0.02 － 1 |
Lincomycin (Lincocin) |
961 |