| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| A | ALIMENTARY TRACT AND METABOLISM | 消化道及代谢 |
| A04 | ANTIEMETICS AND ANTINAUSEANTS | 镇吐药和止呕药 |
| A04A | ANTIEMETICS AND ANTINAUSEANTS | 镇吐药和止呕药 |
| A04AA | Serotonin (5HT3) antagonists | 5-羟色胺拮抗药 |
| A04AD | Other antiemetics | 其它镇吐药 |