| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N05 | PSYCHOLEPTICS | 安定药 |
| N05B | ANXIOLYTICS | 抗焦虑药 |
| N05BA | Benzodiazepine derivatives | 苯并二氮卓衍生物类 |
| N05BA02 | chlordiazepoxide | 氯氮卓（甲氨二氮卓，利眠宁） 30 mg 口服 |
| N05BA02 | chlordiazepoxide | 氯氮卓（甲氨二氮卓，利眠宁） 50 mg 注射 |