| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.03 |
0.06 |
0.001 － 0.25 |
Clarithromycin (Biaxin)  |
1113 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.03 |
0.06 |
0.004 － 0.25 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
954 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.03 |
0.06 |
0.004 － 0.25 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
1113 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.03 |
0.06 |
0.008 － 0.06 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
1113 |
| Streptococcus pneumonia (erythromycin-susceptible) |
≤0.031 |
≤0.031 |
≤0.031 － ? |
Clarithromycin (Biaxin) |
502 |
| Streptococcus pneumonia (erythromycin-susceptible) |
≤0.031 |
≤0.031 |
≤0.031 － ? |
Spiramycin |
502 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.06 |
0.06 |
<0.004 － 64 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
948 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.06 |
0.125 |
0.03 － 0.125 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
1113 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.06 |
0.25 |
0.008 － 0.25 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
1113 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.063 |
0.063 |
≤0.031 － 0.063 |
Clindamycin (Cleocin) |
502 |
| Streptococcus pneumonia (erythromycin-susceptible) |
<0.12 |
<0.12 |
<0.004 － 1 |
Clarithromycin (Biaxin) |
948 |
| Streptococcus pneumonia (erythromycin-susceptible) |
≤0.12 |
≤0.12 |
? － ? |
Telithromycin (HMR 3647, RU-66647, Ketek) |
18 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.12 |
0.25 |
0.03 － 64 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
948 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.125 |
0.125 |
≤0.031 － 0.125 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
502 |
| Streptococcus pneumonia (erythromycin-susceptible) |
0.38 |
0.5 |
? － ? |
Sparfloxacin (AT-4140, Zagam) |
403 |
| Streptococcus pneumonia (erythromycin-susceptible) |
1 |
2 |
0.5 － 2 |
Quinupristin/Dalfopristin (Synercid) |
502 |
| Streptococcus pneumonia (Europe + erythromycin-resistant) |
1 |
2 |
? － ? |
Linezolid (PNU-100766, U-100766, Zyvox) |
306 |
| Streptococcus pneumonia (Europe + penicillin-resistant) |
0.5 |
1 |
? － ? |
Linezolid (PNU-100766, U-100766, Zyvox) |
306 |
| Streptococcus pneumonia (Europe + penicillin-susceptible) |
0.5 |
1 |
? － ? |
Linezolid (PNU-100766, U-100766, Zyvox) |
306 |
| Streptococcus pneumonia (Europe) |
- |
0.06 |
? － ? |
Imipenem |
284 |
| Streptococcus pneumonia (Europe) |
- |
0.06 |
? － ? |
Meropenem (Merrem) |
284 |
| Streptococcus pneumonia (Europe) |
- |
0.13 |
? － ? |
Piperacillin (Pipracil) |
284 |
| Streptococcus pneumonia (Europe) |
- |
0.13 |
? － ? |
Zosyn |
284 |
| Streptococcus pneumonia (Europe) |
- |
0.25 |
? － ? |
Cefotaxime (Cephotaxime, Claforan) |
284 |
| Streptococcus pneumonia (Europe) |
- |
1 |
? － ? |
Ceftazidime (Ceptaz, Fortaz, Tanicef) |
284 |
| Streptococcus pneumonia (Europe) |
- |
2 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
284 |
| Streptococcus pneumonia (fluoroquinolone-resistant) |
0.5 |
0.5 |
0.06 － 1 |
RWJ-416457 |
189 |
| Streptococcus pneumonia (fluoroquinolone-resistant) |
0.5 |
1 |
0.5 － 2 |
Linezolid (PNU-100766, U-100766, Zyvox) |
189 |