| Microorganism |
MIC50
(μg/ml) |
MIC90
(μg/ml) |
Range
(μg/ml) |
Antimicrobial |
Reference |
| Neisseria meningitidis |
0.03 |
0.03 |
0.007 － 0.03 |
Ofloxacin (Floxin)  |
86 |
| Neisseria meningitidis |
0.03 |
0.03 |
≤0.03 － ? |
Ciprofloxacin (Cipro, Ciproxin, Ciprobay) |
462 |
| Neisseria meningitidis |
0.03 |
0.06 |
≤0.03 － 0.5 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
462 |
| Neisseria meningitidis |
0.03 |
0.12 |
0.015 － 0.12 |
Tigecycline (GAR-936, Tigacyl) |
462 |
| Neisseria meningitidis |
0.06 |
0.06 |
<=0.03 － 0.12 |
Azithromycin (Zithromax, Sumamed, Zitrocin) |
1467 |
| Neisseria meningitidis |
≤0.06 |
≤0.06 |
≤0.06 － 0.5 |
Ampicillin (Omnipen) |
462 |
| Neisseria meningitidis |
<0.06 |
<0.06 |
? － ? |
Cefixime (Suprax) |
308 |
| Neisseria meningitidis |
0.06 |
0.12 |
0.007 － 0.25 |
HMR 3004 (RU 64004) |
86 |
| Neisseria meningitidis |
<=0.06 |
0.12 |
<=0.06 － 0.25 |
Penicillin (Benzylpenicillin, Penicillin G, Bicillin C-R/L-A, Pfizerpen, Wycellin) |
1467 |
| Neisseria meningitidis |
0.06 |
0.12 |
≤0.06 － 0.25 |
SCH27899 |
129 |
| Neisseria meningitidis |
0.06 |
0.12 |
≤0.06 － 0.5 |
Amoxicillin-clavulanic acid (Augmentin) |
462 |
| Neisseria meningitidis |
0.06 |
0.12 |
0.25 － ? |
HMR 3004 (RU 64004) |
86 |
| Neisseria meningitidis |
0.06 |
0.25 |
0.03 － 0.25 |
Cefamandole (Mandol) |
1438 |
| Neisseria meningitidis |
0.06 |
- |
? － ? |
Amoxicillin-clavulanate |
308 |
| Neisseria meningitidis |
0.06 |
- |
? － ? |
Cefaclor (Ceclor, Ceclor CD) |
308 |
| Neisseria meningitidis |
0.06 |
- |
? － ? |
Cefuroxime (Kefurox, Zinacef) |
308 |
| Neisseria meningitidis |
0.12 |
0.12 |
0.03 － 0.5 |
Telithromycin (HMR 3647, RU-66647, Ketek) |
86 |
| Neisseria meningitidis |
0.12 |
0.12 |
≤0.06 － 0.12 |
Minocycline (Minocycline hydrochloride, Minocin) |
462 |
| Neisseria meningitidis |
<=0.12 |
<=0.12 |
? － ? |
Cefamandole (Mandol) |
1389 |
| Neisseria meningitidis |
<=0.12 |
<=0.12 |
? － ? |
Cefoxitin (Mefoxin) |
1389 |
| Neisseria meningitidis |
<=0.12 |
<=0.12 |
? － ? |
Cephalothin (Cefalotin, Keflin, Seffin) |
1389 |
| Neisseria meningitidis |
0.12 |
0.25 |
0.06 － 2 |
Erythromycin (E-mycin, Ery-tab, Benzamycin) |
948 |
| Neisseria meningitidis |
0.12 |
0.25 |
0.12 － 0.5 |
Ampicillin (Omnipen) |
493 |
| Neisseria meningitidis |
0.12 |
0.25 |
≤0.12 － 0.5 |
Quinupristin/Dalfopristin (Synercid) |
462 |
| Neisseria meningitidis |
0.12 |
0.5 |
0.003 － 1 |
Clarithromycin (Biaxin) |
86 |
| Neisseria meningitidis |
0.12 |
1 |
0.06 － 1 |
Cefoxitin (Mefoxin) |
1438 |
| Neisseria meningitidis |
0.25 |
0.25 |
≤0.06 － 0.25 |
Tetracycline (Sumycin, Achromycin V, Steclin) |
462 |
| Neisseria meningitidis |
0.25 |
0.5 |
0.03 － 1 |
Imipenem |
493 |