| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococcus pneumoniae (levofloxacin-susceptible) |
<=0.06 |
0.5 |
<=0.06 － 2 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin)  |
1467 |
| Streptococcus pneumoniae (levofloxacin-susceptible) |
0.06 |
>64 |
<=0.03 － >64 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
1467 |
| Streptococcus pneumoniae (levofloxacin-susceptible) |
0.5 |
0.5 |
0.25 － 2 |
Levofloxacin (Levaquin, Quixin) |
1467 |
| Streptococcus pneumoniae (levofloxacin-susceptible) |
0.5 |
2 |
0.12 － 8 |
Ciprofloxacin (Planktonic) |
1467 |
| Streptococcus pneumoniae (levofloxacin-susceptible) |
8 |
16 |
4 － 32 |
Tobramycin (Tobrex, Nebcin) |
1467 |
| Streptococcus pneumoniae (penicillin-intermediate) |
- |
- |
<=0.008 － 0.5 |
Ceftaroline |
1583 |
| Streptococcus pneumoniae (penicillin-resistant) |
2 |
- |
2 － 4 |
Cefpodoxime |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
2 |
- |
2 － 8 |
Cefuroxime (Kefurox, Zinacef) |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
8 |
- |
4 － 64 |
Cefprozil (Cefzil) |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
32 |
- |
16 － 64 |
Cefixime (Suprax) |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
32 |
- |
32 － 64 |
Ceftibuten (Cedax) |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
>64 |
- |
64 － >64 |
Cefaclor (Ceclor, Ceclor CD) |
1492 |
| Streptococcus pneumoniae (penicillin-resistant) |
- |
- |
>64 － ? |
Ampicillin (Omnipen) |
1594 |
| Streptococcus pneumoniae (penicillin-resistant) |
- |
- |
64 － ? |
Cefotaxime (Cephotaxime, Claforan) |
1594 |
| Streptococcus pneumoniae (penicillin-sensitive) |
- |
- |
<=0.008 － 0.25 |
Ceftaroline |
1583 |
| Streptococcus pneumoniae (penicillin-susceptible) |
0.03 |
0.03 |
0.015 － 0.06 |
Cefuroxime (Kefurox, Zinacef) |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
0.03 |
0.06 |
0.015 － 0.13 |
Cefpodoxime |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
0.5 |
0.5 |
0.03 － 1 |
Cefprozil (Cefzil) |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
0.5 |
1 |
0.5 － 1 |
Cefixime (Suprax) |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
2 |
2 |
1 － 4 |
Cefaclor (Ceclor, Ceclor CD) |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
4 |
4 |
4 － 8 |
Ceftibuten (Cedax) |
1492 |
| Streptococcus pneumoniae (penicillin-susceptible) |
- |
- |
0.125 － ? |
Ampicillin (Omnipen) |
1594 |
| Streptococcus pneumoniae (penicillin-susceptible) |
- |
- |
1 － ? |
Cefotaxime (Cephotaxime, Claforan) |
1594 |