| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Haemophilus influenzae |
16 |
16 |
0.5 － 64 |
Roxithromycin  |
125 |
| Haemophilus influenzae |
>16 |
>16 |
>16 － ? |
Bacitracin (Baci-IM) |
120 |
| Haemophilus influenzae |
16 |
32 |
0.25 － 64 |
Dirithromycin (Dynabac) |
125 |
| Haemophilus influenzae |
16 |
32 |
4 － 64 |
Clarithromycin (Biaxin) |
769 |
| Haemophilus influenzae |
16 |
64 |
4 － >128 |
Cephalexin (Keflex, Keftal, Cefanox) |
274 |
| Haemophilus influenzae |
32 |
- |
32 － ? |
Kasugamycin |
1431 |
| Haemophilus influenzae |
- |
0.008 |
? － ? |
Clinafloxacin (PD 127391) |
341 |
| Haemophilus influenzae |
- |
0.008 |
? － ? |
Gemifloxacin |
1044 |
| Haemophilus influenzae |
- |
0.015 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
341 |
| Haemophilus influenzae |
- |
0.015 |
? － ? |
Sparfloxacin (AT-4140, Zagam) |
341 |
| Haemophilus influenzae |
- |
0.015 |
? － ? |
Trovafloxacin (Trovan) |
341 |
| Haemophilus influenzae |
- |
0.016 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
1044 |
| Haemophilus influenzae |
- |
0.016 |
? － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
1044 |
| Haemophilus influenzae |
- |
0.016 |
? － ? |
Gatifloxacin (Tequin) |
341 |
| Haemophilus influenzae |
- |
0.016 |
? － ? |
Gatifloxacin (Tequin) |
1044 |
| Haemophilus influenzae |
- |
0.016 |
? － ? |
Levofloxacin (Levaquin, Quixin) |
1044 |
| Haemophilus influenzae |
- |
0.03 |
? － ? |
Grepafloxacin (Raxar) |
341 |
| Haemophilus influenzae |
- |
0.03 |
? － ? |
Levofloxacin (Levaquin, Quixin) |
341 |
| Haemophilus influenzae |
- |
0.031 |
? － ? |
Gatifloxacin (Tequin) |
1044 |
| Haemophilus influenzae |
- |
0.031 |
? － ? |
Moxifloxacin (BAY 12-8039, Avelox) |
1044 |
| Haemophilus influenzae |
- |
0.031 |
? － ? |
Moxifloxacin (BAY 12-8039, Avelox) |
1044 |
| Haemophilus influenzae |
- |
0.031 |
? － ? |
Ofloxacin (Floxin) |
1044 |
| Haemophilus influenzae |
- |
0.031 |
? － ? |
Ofloxacin (Floxin) |
1044 |
| Haemophilus influenzae |
≤- |
≤0.06 |
? － ? |
Levofloxacin (Levaquin, Quixin) |
602 |
| Haemophilus influenzae |
- |
0.06 |
? － ? |
Moxifloxacin (BAY 12-8039, Avelox) |
341 |
| Haemophilus influenzae |
- |
0.06 |
? － ? |
Ofloxacin (Floxin) |
341 |
| Haemophilus influenzae |
- |
0.5 |
? － ? |
Vancomycin (Vancocyn, Lyphocin) |
240 |
| Haemophilus influenzae |
- |
2 |
? － ? |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
1044 |