| Serial No. |
Antibiotics |
Concentration
(micrograms) |
E. coli
(Inhibition zone diameter in cm.)* |
| 1 |
Tetracycline |
- |
2.00 |
| 2 |
Bacitracin |
- |
R |
| 3 |
Cephaloridine |
- |
R |
| 5 |
Polymyxin |
300 |
0.9 |
| 6 |
Neomycin |
30 |
1.4 |
| 7 |
Novobiocin |
30 |
1.1 |
| 8 |
Kanamycin |
30 |
1.3 |
| 9 |
Amikacin |
30 |
1.6 |
| 10 |
Lomefloxacin |
10 |
2.5 |
| 11 |
Cephadroxil |
30 |
R |
| 12 |
Sparfloxacin |
5 |
2.3 |
| 13 |
Netillin |
30 |
1.4 |
| 14 |
Ceftazidime |
30 |
R |
| 19 |
Cefaperazone |
75 |
1.2 |
| 20 |
Ampicillin |
10 |
R |
| 21 |
Cephotaxime |
30 |
1.4 |
| 22 |
Augmentin |
30 |
1.3 |
| 23 |
Cefuroxime |
30 |
1.2 |
| 24 |
Ceftriaxone |
30 |
1.9 |
| 25 |
Amoxycillin |
10 |
2.2 |
| 26 |
Erythromycin |
15 |
0.7 |
| 27 |
Clindamycin |
02 |
1.1 |
| 28 |
Gentamycin |
10 |
1.4 |
| 29 |
Ofloxacin |
05 |
2.4 |
| 30 |
Lincomycin |
02 |
R |
| 31 |
Ciprofloxacin |
05 |
1.6 |
| 32 |
Tobramycin |
10 |
1.3 |
| 33 |
Cotrimoxazole |
25 |
R |
| 34 |
Norfloxacin |
10 |
1.4 |
| 35 |
Oxytertracyline |
30 |
0.3 |
| 36 |
Amoxyclav |
30 |
0.6 |
| 37 |
Penicillin |
10 (Units) |
0.5 |
| 38 |
Oxacillin |
1 |
0.3 |
| 39 |
Cephalothin |
30 |
0.4 |
| 40 |
Amkalin |
30 |
0.4 |
*R instead of numerical value in the diameter column stands for ‘Resistant’ |