| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N02 | ANALGESICS | 镇痛药 |
| N02B | OTHER ANALGESICS AND ANTIPYRETICS | 其它解热镇痛药 |
| N02BB | Pyrazolones | 吡唑酮类 |
| N02BB02 | metamizole sodium | 安乃近 3 g 口服 |
| N02BB02 | metamizole sodium | 安乃近 3 g 直肠给药 |
| N02BB02 | metamizole sodium | 安乃近 3 g 注射 |