| 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 |
| R06AD | Phenothiazine derivatives | 吩噻嗪衍生物类 |
| R06AD52 | promethazine, combinations | 异丙嗪，复方 |