| 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 |
| L01AB | Alkyl sulfonates | 烷基磺酸酯类 |
| L01AB01 | busulfan | 白消安（白血福思） |
| L01AB02 | treosulfan | 曲奥舒凡 |
| L01AB03 | mannosulfan | 甘露舒凡 |