| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| S | SENSORY ORGANS | 感觉器官 |
| S03 | OPHTHALMOLOGICAL AND OTOLOGICAL PREPARATIONS | 眼和耳科药物 |
| S03A | ANTIINFECTIVES | 抗感染药 |
| S03AA | Antiinfectives | 抗感染药 |
| S03AA01 | neomycin | 新霉素 |
| S03AA02 | tetracycline | 四环素 |
| S03AA03 | polymyxin B | 多粘菌素B |
| S03AA04 | chlorhexidine | 氯己定 |
| S03AA05 | hexamidine | 己脒定 |
| S03AA06 | gentamicin | 庆大霉素 |
| S03AA07 | ciprofloxacin | 环丙沙星 |
| S03AA08 | chloramphenicol | 氯霉素 |
| S03AA30 | antiinfectives, combinations | 抗感染药，复方 |