| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| R | RESPIRATORY SYSTEM | 呼吸系统 |
| R01 | NASAL PREPARATIONS | 鼻腔用药 |
| R01A | DECONGESTANTS AND OTHER NASAL PREPARATIONS FOR TOPICAL USE | 减充血药和其它鼻腔局部用药 |
| R01AA | Sympathomimetics, plain | 拟交感神经药，单方 |
| R01AB | Sympathomimetics, combinations excl. corticosteroids | 拟交感神经药与非皮质甾体激素类药的复方 |
| R01AC | Antiallergic agents, excl. corticosteroids | 非皮质甾体激素类抗变态反应药 |
| R01AD | Corticosteroids | 皮质甾体激素类 |
| R01AX | Other nasal preparations | 其它鼻腔用药 |