| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| R | RESPIRATORY SYSTEM | 呼吸系统 |
| R06 | ANTIHISTAMINES FOR SYSTEMIC USE | 系统用抗组胺药 |
| R06A | ANTIHISTAMINES FOR SYSTEMIC USE | 系统用抗组胺药 |
| R06AX | Other antihistamines for systemic use | 系统用其它抗组胺药 |
| R06AX17 | ketotifen | 酮替芬 2 mg 口服 |