| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N03 | ANTIEPILEPTICS | 抗癫痫药 |
| N03A | ANTIEPILEPTICS | 抗癫痫药 |
| N03AC | Oxazolidine derivatives | 恶唑烷衍生物 |
| N03AC01 | paramethadione | 甲乙双酮（对甲双酮） 0.9 g 口服 |
| N03AC02 | trimethadione | 三甲双酮 1.5 g 口服 |
| N03AC03 | ethadione | 依沙双酮 |