| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| A | ALIMENTARY TRACT AND METABOLISM | 消化道及代谢 |
| A06 | Drugs for constipation | 治疗便秘的药物 |
| A06A | Drugs for constipation | 治疗便秘的药物 |
| A06AH | Peripheral opioid receptor antagonists | 外周阿片受体拮抗剂 |
| A06AH01 | methylnaltrexone bromide | 溴化甲基纳曲酮 6 mg 注射 |
| A06AH02 | alvimopan | 爱维莫潘 |
| A06AH03 | naloxegol | 25mg 口服 |
| A06AH04 | naloxone | 纳洛酮 |