| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N05 | PSYCHOLEPTICS | 安定药 |
| N05C | HYPNOTICS AND SEDATIVES | 催眠镇静药 |
| N05CB | Barbiturates, combinations | 巴比妥类，复方 |
| N05CB01 | combinations of barbiturates | 巴比妥类的复方 |
| N05CB02 | barbiturates in combination with other drugs | 巴比妥类与其它药物的复方 |