| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N04 | ANTI-PARKINSON DRUGS | 抗震颤麻痹药 |
| N04A | ANTICHOLINERGIC AGENTS | 抗胆碱能药 |
| N04AA | Tertiary amines | 叔胺类 |
| N04AA04 | procyclidine | 丙环定（普环啶，卡马特灵） 25 mg 口服 |
| N04AA04 | procyclidine | 丙环定（普环啶，卡马特灵） 25 mg 注射 |