| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.03 |
0.06 |
0.001 － 1 |
Clarithromycin (Biaxin)  |
950 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.03 |
0.06 |
≤0.03 － 0.06 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.06 |
0.25 |
0.008 － 64 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
950 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.06 |
0.5 |
0.06 － 16 |
Cefuroxime (Kefurox, Zinacef) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
≤0.12 |
≤0.12 |
≤0.12 － 0.5 |
Clarithromycin (Biaxin) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
≤0.12 |
≤0.12 |
≤0.12 － 32 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
≤0.12 |
≤0.12 |
≤0.12 － 32 |
Roxithromycin |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
≤0.12 |
≤0.12 |
≤0.12 － ? |
Telithromycin (HMR 3647, RU-66647, Ketek) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.12 |
0.25 |
≤0.12 － 0.25 |
Erythromycin A |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.12 |
4 |
0.12 － 32 |
Co-trimoxazole (Trimethoprim-sulfamethoxazole, TMP-SMX) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
0.25 |
0.5 |
0.25 － 32 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
1 |
1 |
0.25 － 1 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
499 |
| Streptococcus pneumonia (erythromycin A-susceptible) |
1 |
2 |
0.12 － >32 |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
499 |
| Streptococcus pneumonia (erythromycin-intermediate + penicillin-intermediate) |
0.38 |
0.5 |
? － ? |
Sparfloxacin (AT-4140, Zagam) |
403 |
| Streptococcus pneumonia (erythromycin-intermediate) |
≤0.12 |
≤0.12 |
? － ? |
Telithromycin (HMR 3647, RU-66647, Ketek) |
18 |
| Streptococcus pneumonia (erythromycin-intermediate) |
0.25 |
0.5 |
? － ? |
Sparfloxacin (AT-4140, Zagam) |
403 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
>=0.25 |
≥8 |
<0.06 － >8 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
0.5 |
1 |
<0.015 － 2 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
1 |
1 |
0.25 － 128 |
Levofloxacin (Levaquin, Quixin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
>=1 |
≥8 |
<0.12 － >8 |
Amoxicillin-clavulanate |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
2 |
4 |
0.06 － 8 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
4 |
8 |
<0.12 － >16 |
Cefuroxime (Kefurox, Zinacef) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
>=8 |
≥8 |
<0.25 － >8 |
Co-trimoxazole (Trimethoprim-sulfamethoxazole, TMP-SMX) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
16 |
16 |
1 － >256 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2000-2001) |
16 |
32 |
1250 － >256 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2001-2002) |
0.12 |
0.5 |
<0.015 － 2 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2001-2002) |
>=0.25 |
≥8 |
<0.06 － >8 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
369 |
| Streptococcus pneumonia (erythromycin-resistant + 2001-2002) |
1 |
1 |
0.25 － 64 |
Levofloxacin (Levaquin, Quixin) |
369 |