| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| C | CARDIOVASCULAR SYSTEM | 心血管系统 |
| C02 | ANTIHYPERTENSIVES | 抗高血压药 |
| C02C | ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING | 外周作用的抗肾上腺素能药 |
| C02CA | Alpha-adrenoreceptor antagonists | α-肾上腺素受体拮抗药 |
| C02CC | Guanidine derivatives | 胍衍生物 |