| 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 |
| R06AA | Aminoalkyl ethers | 氨基烷基醚类 |
| R06AA02 | diphenhydramine | 苯海拉明 0.2 g 口服 chloride |
| R06AA02 | diphenhydramine | 苯海拉明 0.2 g 直肠给药 chloride |
| R06AA02 | diphenhydramine | 苯海拉明 0.3 g 口服 teoclate |
| R06AA02 | diphenhydramine | 苯海拉明 0.3 g 直肠给药 teoclate |