| 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 |
| N03AB | Hydantoin derivatives | 海因衍生物类 |
| N03AB04 | mephenytoin | 美芬妥英（美速因，甲基妥英） 0.4 g 口服 |
| 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 |
| N03AB | Hydantoin derivatives | 海因衍生物类 |
| N03AB04 | mephenytoin | 美芬妥英（美速因，甲基妥英） 0.4 g 口服 |