| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Haemophilus influenzae (ampicillin-susceptible) |
0.5 |
1 |
0.25 － 2 |
Ampicillin (Omnipen)  |
115 |
| Haemophilus influenzae (ampicillin-susceptible) |
0.6 |
1.2 |
? － ? |
Telithromycin (HMR 3647, RU-66647, Ketek) |
58 |
| Haemophilus influenzae (ampicillin-susceptible) |
1 |
2 |
0.5 － 2 |
Cefuroxime (Kefurox, Zinacef) |
1492 |
| Haemophilus influenzae (ampicillin-susceptible) |
1 |
16 |
1 － 16 |
Flomoxef |
115 |
| Haemophilus influenzae (ampicillin-susceptible) |
1.2 |
5 |
? － ? |
Clarithromycin (Biaxin) |
58 |
| Haemophilus influenzae (ampicillin-susceptible) |
2 |
32 |
1 － 64 |
Cefaclor (Ceclor, Ceclor CD) |
130 |
| Haemophilus influenzae (ampicillin-susceptible) |
2 |
32 |
1 － 64 |
Cefaclor (Ceclor, Ceclor CD) |
443 |
| Haemophilus influenzae (ampicillin-susceptible) |
4 |
4 |
0.12 － >8 |
Quinupristin/Dalfopristin (Synercid) |
265 |
| Haemophilus influenzae (ampicillin-susceptible) |
4 |
16 |
2 － 32 |
Imipenem |
115 |
| Haemophilus influenzae (ampicillin-susceptible) |
6 |
0.13 |
0.03 － 0.13 |
Cefixime (Suprax) |
1492 |
| Haemophilus influenzae (ampicillin-susceptible) |
8 |
16 |
≤0.25 － 32 |
Clarithromycin (Biaxin) |
265 |
| Haemophilus influenzae (ampicillin-susceptible) |
8 |
16 |
2 － 16 |
Cefaclor (Ceclor, Ceclor CD) |
1492 |
| Haemophilus influenzae (ampicillin-susceptible) |
8 |
16 |
4 － 32 |
Cefprozil (Cefzil) |
1492 |
| Haemophilus influenzae (ampicillin-susceptible) |
64 |
64 |
64 － ? |
Tioconazole |
1504 |
| Haemophilus influenzae (ampicillin-susceptible) |
- |
4 |
0.03 － 16 |
LBM415 (NVP-PDF-713, VIC-10495) |
265 |
| Haemophilus influenzae (ATCC 19418) |
- |
- |
32 － ? |
Microbisporicin |
801 |
| Haemophilus influenzae (ATCC 19418) |
- |
- |
>128 － ? |
Actagardine |
801 |
| Haemophilus influenzae (ATCC 19418) |
- |
- |
>128 － ? |
Mersacidin |
801 |
| Haemophilus influenzae (ATCC 19418) |
- |
- |
>128 － ? |
Nisin |
801 |
| Haemophilus influenzae (ATCC 19418) |
- |
- |
>128 － ? |
Planosporicin |
801 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.008 － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.125 － ? |
VRC4411 |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.25 － ? |
Chloramphenicol (Chloromycetin) |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.25 － ? |
Tetracycline (Sumycin, Achromycin V, Steclin) |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.25 － ? |
Trimethoprim (Proloprim, Trimpex) |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.5 － ? |
VRC3375 |
623 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.5 － ? |
VRC4307 |
88 |
| Haemophilus influenzae (ATCC 31517) |
- |
- |
0.5 － ? |
VRC4349 |
88 |