| 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 |
| L01AD | Nitrosoureas | 亚硝基脲类 |
| L01AD04 | streptozocin | 链佐星（链尿佐菌素，链尿菌素，链氯霉素） |