| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| C | CARDIOVASCULAR SYSTEM | 心血管系统 |
| C04 | PERIPHERAL VASODILATORS | 外周血管扩张剂 |
| C04A | PERIPHERAL VASODILATORS | 外周血管扩张剂 |
| C04AD | Purine derivatives | 嘌呤衍生物 |
| C04AD04 | etofylline nicotinate | 烟酸乙羟茶碱 0.3 g 口服 |