| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N02 | ANALGESICS | 镇痛药 |
| N02A | OPIOIDS | 阿片碱类 |
| N02AC | Diphenylpropylamine derivatives | 二苯丙胺衍生物 |
| N02AC04 | dextropropoxyphene | 右丙氧芬 0.2 g 口服 chloride |
| N02AC04 | dextropropoxyphene | 右丙氧芬 0.3 g 口服 napsylate |