| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N01 | ANESTHETICS | 麻醉药 |
| N02 | ANALGESICS | 镇痛药 |
| N03 | ANTIEPILEPTICS | 抗癫痫药 |
| N04 | ANTI-PARKINSON DRUGS | 抗震颤麻痹药 |
| N05 | PSYCHOLEPTICS | 安定药 |
| N06 | PSYCHOANALEPTICS | 精神兴奋药 |
| N07 | OTHER NERVOUS SYSTEM DRUGS | 其它神经系统用药 |