| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococcus spp. (Viridans group) |
0.03 |
0.25 |
≤0.03 － 8 |
Amoxicillin-clavulanate  |
493 |
| Streptococcus spp. (Viridans group) |
>0.03 |
>4 |
≤0.03 － >4 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
462 |
| Streptococcus spp. (Viridans group) |
0.03 |
- |
0.015 － 4 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
248 |
| Streptococcus spp. (Viridans group) |
0.06 |
0.12 |
? － ? |
Clinafloxacin (PD 127391) |
307 |
| Streptococcus spp. (Viridans group) |
0.06 |
1 |
≤0.015 － >2 |
Ceftriaxone (Rocephin) |
462 |
| Streptococcus spp. (Viridans group) |
0.06 |
- |
0.008 － 2 |
Imipenem |
248 |
| Streptococcus spp. (Viridans group) |
0.06 |
- |
0.03 － 1 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
248 |
| Streptococcus spp. (Viridans group) |
0.06 |
- |
0.06 － 0.125 |
Clinafloxacin (PD 127391) |
248 |
| Streptococcus spp. (Viridans group) |
0.06 |
- |
0.06 － 0.125 |
PD 124816 |
248 |
| Streptococcus spp. (Viridans group) |
≤0.12 |
≤0.12 |
≤0.12 － 0.5 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
18 |
| Streptococcus spp. (Viridans group) |
0.12 |
0.25 |
0.03 － 0.25 |
Cefdinir (Omnicef, Cefdiel) |
267 |
| Streptococcus spp. (Viridans group) |
0.12 |
0.25 |
0.03 － 2 |
Imipenem |
102 |
| Streptococcus spp. (Viridans group) |
0.12 |
0.25 |
0.06 － 0.25 |
Garenoxacin (T-3811, BMS-284756) |
102 |
| Streptococcus spp. (Viridans group) |
0.12 |
0.5 |
≤0.008 － 4 |
Ertapenem (Invanz) |
493 |
| Streptococcus spp. (Viridans group) |
0.12 |
0.5 |
0.06 － >2 |
Trovafloxacin (Trovan) |
462 |
| Streptococcus spp. (Viridans group) |
0.12 |
1 |
≤0.03 － >4 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
462 |
| Streptococcus spp. (Viridans group) |
0.12 |
4 |
≤0.06 － >8 |
Amoxicillin-clavulanic acid (Augmentin) |
462 |
| Streptococcus spp. (Viridans group) |
0.12 |
8 |
≤0.12 － >16 |
Clindamycin (Cleocin) |
18 |
| Streptococcus spp. (Viridans group) |
0.125 |
0.25 |
0.06 － 0.25 |
Garenoxacin (T-3811, BMS-284756) |
225 |
| Streptococcus spp. (Viridans group) |
0.125 |
- |
0.06 － 0.25 |
Difluoroquinolone (PD 117596) |
248 |
| Streptococcus spp. (Viridans group) |
0.25 |
0.25 |
0.12 － 0.5 |
Moxifloxacin (BAY 12-8039, Avelox) |
102 |
| Streptococcus spp. (Viridans group) |
0.25 |
0.5 |
0.06 － 0.5 |
Gatifloxacin (Tequin) |
102 |
| Streptococcus spp. (Viridans group) |
0.25 |
1 |
0.015 － >32 |
Ceftriaxone (Rocephin) |
102 |
| Streptococcus spp. (Viridans group) |
0.25 |
1 |
0.03 － 4 |
Amoxicillin-clavulanic acid (Augmentin) |
102 |
| Streptococcus spp. (Viridans group) |
>0.25 |
>2 |
≤0.25 － >2 |
Co-trimoxazole (Trimethoprim-sulfamethoxazole, TMP-SMX) |
462 |
| Streptococcus spp. (Viridans group) |
0.25 |
8 |
≤0.06 － >8 |
Ampicillin (Omnipen) |
462 |
| Streptococcus spp. (Viridans group) |
0.25 |
16 |
≤0.12 － >16 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
18 |
| Streptococcus spp. (Viridans group) |
0.5 |
0.5 |
0.125 － 1 |
Gatifloxacin (Tequin) |
225 |