| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| A | ALIMENTARY TRACT AND METABOLISM | 消化道及代谢 |
| A11 | VITAMINS | 维生素类 |
| A11D | VITAMIN B1, PLAIN AND IN COMBINATION WITH VITAMIN B6 AND B12 | 维生素B1单方及其与维生素B6和B12的复方 |
| A11DA | Vitamin B1, plain | 维生素B1，单方 |
| A11DB | Vitamin B1 in combination with vitamin B6 and/or vitamin B12 | 维生素B1与维生素B6和/或B12的复方 |