| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| L | ANTINEOPLASTIC AND IMMUNOMODULATING AGENTS | 抗肿瘤药和免疫机能调节药 |
| L01 | ANTINEOPLASTIC AGENTS | 抗肿瘤药 |
| L01A | ALKYLATING AGENTS | 烷基化剂 |
| L01AA | Nitrogen mustard analogues | 氮芥类 |
| L01AA03 | melphalan | 美法仑（米尔法兰，左旋溶肉瘤素，左旋苯丙氨酸氮芥） |