| 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 |
| L01X | OTHER ANTINEOPLASTIC AGENTS | 其它抗肿瘤药物 |
| L01XB | Methylhydrazines | 甲基肼类 |
| L01XB01 | procarbazine | 丙卡巴肼（甲基苄肼） |