| ATC Codes | Pharmacological Classification | Pharmacological Classification/DDD |
|---|---|---|
| N | NERVOUS SYSTEM | 神经系统 |
| N06 | PSYCHOANALEPTICS | 精神兴奋药 |
| N06B | PSYCHOSTIMULANTS, AGENTS USED FOR ADHD AND NOOTROPICS | 精神兴奋药，用于治疗注意力缺陷多动症药和益智药 |
| N06BA | Centrally acting sympathomimetics | 中心作用的拟交感神经药 |
| N06BC | Xanthine derivatives | 黄嘌呤衍生物 |
| N06BX | Other psychostimulants and nootropics | 其它精神兴奋药和益智药 |