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.

170 marketing authorisation holders

  • 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

ACETAMINOPHEN542 products · 348 aloneDEXTROMETHORPHAN HYDROBROMIDE194 products · 0 alonePREGABALIN185 products · 185 alone194000

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.

  1. 01Pregabalin185 productsprescription only
  2. 02Acetaminophen166 products161 OTC
  3. 03Quetiapine (Quetiapine Fumarate)155 productsprescription only
  4. 04Olanzapine132 productsprescription only
  5. 05Risperidone112 productsprescription only
  6. 06Aripiprazole95 productsprescription only
  7. 07Lisdexamfetamine Dimesylate87 productsprescription only
  8. 08Gabapentin86 productsprescription only
  9. 09Escitalopram (Escitalopram Oxalate)77 productsprescription only
  10. 10Citalopram (Citalopram Hydrobromide)73 productsprescription only
  11. 11Atomoxetine (Atomoxetine Hydrochloride)72 productsprescription only
  12. 12Levetiracetam72 productsprescription only
  13. 13Morphine Sulfate69 productsprescription only
  14. 14Methylphenidate Hydrochloride63 productsprescription only
  15. 15Lacosamide62 productsprescription only
  16. 16Sertraline (Sertraline Hydrochloride)57 productsprescription only
  17. 17Venlafaxine (Venlafaxine Hydrochloride)57 productsprescription only
  18. 18Rizatriptan (Rizatriptan Benzoate)56 productsprescription only
  19. 19Zopiclone52 productsprescription only
  20. 20Topiramate50 productsprescription only
  21. 21Duloxetine (Duloxetine Hydrochloride)48 productsprescription only
  22. 22Acetylsalicylic Acid46 products46 OTC
  23. 23Fluoxetine (Fluoxetine Hydrochloride)45 productsprescription only
  24. 24Hydromorphone Hydrochloride45 productsprescription only
  25. 25Amitriptyline Hydrochloride44 productsprescription only
  26. 26Donepezil Hydrochloride40 productsprescription only
  27. 27Mirtazapine37 productsprescription only
  28. 28Sumatriptan (Sumatriptan Succinate)37 productsprescription only
  29. 29Paroxetine (Paroxetine Hydrochloride Hemihydrate)36 productsprescription only
  30. 30Pramipexole Dihydrochloride Monohydrate36 productsprescription only
  31. 31Lamotrigine35 productsprescription only
  32. 32Lurasidone Hydrochloride35 productsprescription only
  33. 33Lidocaine Hydrochloride34 products1 OTC
  34. 34Mixed Salts Amphetamine30 productsprescription only
  35. 35Betahistine Hydrochloride28 productsprescription only
  36. 36Galantamine (Galantamine Hydrobromide)28 productsprescription only
  37. 37Oxycodone Hydrochloride28 productsprescription only
  38. 38Zolmitriptan28 productsprescription only
  39. 39Clozapine27 productsprescription only
  40. 40Doxepin (Doxepin Hydrochloride)27 productsprescription only
  41. 41Brivaracetam26 productsprescription only
  42. 42Bupivacaine Hydrochloride26 productsprescription only
  43. 43Rivastigmine (Rivastigmine Hydrogen Tartrate)25 productsprescription only
  44. 44Tramadol Hydrochloride23 productsprescription only
  45. 45Paroxetine (Paroxetine Hydrochloride)22 productsprescription only
  46. 46Trazodone Hydrochloride21 productsprescription only
  47. 47Eletriptan (Eletriptan Hydrobromide)20 productsprescription only
  48. 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.