| 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 |
| L01B | ANTIMETABOLITES | 代谢拮抗药 |
| L01BA | Folic acid analogues | 叶酸同系物类 |
| L01BB | Purine analogues | 嘌呤同系物类 |
| L01BC | Pyrimidine analogues | 嘧啶同系物类 |