| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N07 | OTHER NERVOUS SYSTEM DRUGS | 其它神经系统用药 |
| N07X | OTHER NERVOUS SYSTEM DRUGS | 其它神经系统用药 |
| N07XX | Other nervous system drugs | 其它神经系统用药 |
| N07XX59 | dextromethorphan, combinations | 右美沙芬制品 |
| N07XX59 | dextromethorpen, combinations | 40 口服 O |