N - Nervous System
Sub-classes
N01 - Anesthetics
2 sub-classes
N02 - Analgesics
3 sub-classes
N03 - Antiepileptics
1 sub-classes
N04 - Anti-Parkinson drugs
2 sub-classes
N05 - Psycholeptics
5 sub-classes
N06 - Psychoanaleptics
4 sub-classes
N07 - Other nervous system drugs
4 sub-classes