ATC NNervous systemWHO
Pain, sleep, mood, epilepsyand the brain
4 134 medicines · 279 active substances · from the Health Canada — Drug Product Database
Counted from the register
The group in figures
- 4 134products listed in the register
- 13%without prescription (545)
- 523combination products — more than one substance
What the group contains
Anatomical main group N of the WHO ATC classification: “Nervous system”. US records carry no ATC code: a product is here because the FDA pharmacologic class on its record maps to this group — not because of any judgement about who it is for.
- N02 1 278
- N06 1 099
- N05 909
- N03 389
- N01 175
- N04 149
ATC subgroups by code; their names are at the WHO index.
Source: Health Canada — Drug Product Database, 2026-09-30. Counts computed by Mediclarum from that file.
The most common
substances
and how often
they are combined
Numbers in the overlaps are products in the register that contain both substances (the centre: all three). Being sold together is not a statement that the substances are interchangeable, or that they should be combined.
Active substances in this group
Commonest first, by number of products in the register. Select one to see every product that contains it.
- 01Pregabalin185 productsprescription only
- 02Acetaminophen166 products161 OTC
- 03Quetiapine (Quetiapine Fumarate)155 productsprescription only
- 04Olanzapine132 productsprescription only
- 05Risperidone112 productsprescription only
- 06Aripiprazole95 productsprescription only
- 07Lisdexamfetamine Dimesylate87 productsprescription only
- 08Gabapentin86 productsprescription only
- 09Escitalopram (Escitalopram Oxalate)77 productsprescription only
- 10Citalopram (Citalopram Hydrobromide)73 productsprescription only
- 11Atomoxetine (Atomoxetine Hydrochloride)72 productsprescription only
- 12Levetiracetam72 productsprescription only
- 13Morphine Sulfate69 productsprescription only
- 14Methylphenidate Hydrochloride63 productsprescription only
- 15Lacosamide62 productsprescription only
- 16Sertraline (Sertraline Hydrochloride)57 productsprescription only
- 17Venlafaxine (Venlafaxine Hydrochloride)57 productsprescription only
- 18Rizatriptan (Rizatriptan Benzoate)56 productsprescription only
- 19Zopiclone52 productsprescription only
- 20Topiramate50 productsprescription only
- 21Duloxetine (Duloxetine Hydrochloride)48 productsprescription only
- 22Acetylsalicylic Acid46 products46 OTC
- 23Fluoxetine (Fluoxetine Hydrochloride)45 productsprescription only
- 24Hydromorphone Hydrochloride45 productsprescription only
- 25Amitriptyline Hydrochloride44 productsprescription only
- 26Donepezil Hydrochloride40 productsprescription only
- 27Mirtazapine37 productsprescription only
- 28Sumatriptan (Sumatriptan Succinate)37 productsprescription only
- 29Paroxetine (Paroxetine Hydrochloride Hemihydrate)36 productsprescription only
- 30Pramipexole Dihydrochloride Monohydrate36 productsprescription only
- 31Lamotrigine35 productsprescription only
- 32Lurasidone Hydrochloride35 productsprescription only
- 33Lidocaine Hydrochloride34 products1 OTC
- 34Mixed Salts Amphetamine30 productsprescription only
- 35Betahistine Hydrochloride28 productsprescription only
- 36Galantamine (Galantamine Hydrobromide)28 productsprescription only
- 37Oxycodone Hydrochloride28 productsprescription only
- 38Zolmitriptan28 productsprescription only
- 39Clozapine27 productsprescription only
- 40Doxepin (Doxepin Hydrochloride)27 productsprescription only
- 41Brivaracetam26 productsprescription only
- 42Bupivacaine Hydrochloride26 productsprescription only
- 43Rivastigmine (Rivastigmine Hydrogen Tartrate)25 productsprescription only
- 44Tramadol Hydrochloride23 productsprescription only
- 45Paroxetine (Paroxetine Hydrochloride)22 productsprescription only
- 46Trazodone Hydrochloride21 productsprescription only
- 47Eletriptan (Eletriptan Hydrobromide)20 productsprescription only
- 48Lorazepam20 productsprescription only
Showing 48 of 384. Browse every substance A–Z
How this group is made
Each product is placed by the ATC code in its national register record (Bulgaria) or by the pharmacologic class the FDA assigned it (United States). Products without either are in no group rather than in a plausible one.
A group is not a diagnosis. Medicines are grouped by the class the regulator gave them. Which one suits you depends on things this page cannot know — ask a pharmacist or doctor.