Postal address:
WHO Collaborating Centre for Drug Statistics Methodology
Norwegian Institute of Public Health
P.O.Box 4404 Nydalen
0403 Oslo

Visiting/delivery address:
Marcus Thranes gate 6
0473 Oslo

Tel:  +47 21 07 81 60

New search    Hide text from Guidelines


This group comprises general analgesics and antipyretics.

All salicylic acid derivatives except combinations with corticosteroids (M01B) or opioids (N02AJ) are classified in N02BA - Salicylic acid and derivatives, as it is difficult to differentiate between the use of salicylates in rheumatic conditions and other therapeutic uses of salicylates.

All plain ibuprofen preparations are classified in M01A, even if they are only intended for use as pain relief.

There are a number of combined preparations, which contain analgesics and psycholeptics. These are classified in N02, as pain relief must be regarded as the main indication. Analgesics used for specific indications are classified in the respective ATC groups. E.g.:

A03EA - Antispasmodic/psycholeptics/analgesic combinations
M01 - Antiinflammatory and antirheumatic products
M02A - Topical products for joint and muscular pain
M03 - Muscle relaxants

See comments to these groups.

Lidocaine indicated for postherpetic pain is classified in N01BB.


This group comprises preparations specifically used in the prophylaxis and treatment of migraine. Analgesics, see N02A and N02B.

Beta blocking agents, see C07.

Antivertigo preparations, see N07.
Cyproheptadine, see R06A - Antihistamines for systemic use.

Tolfenamic acid, see M01AG - Fenamates.

Indometacin in combination with prochlorperazine and caffeine is classified in M01AB51 - Indometacin, combinations.

N02CX Other antimigraine preparations

This group comprises antimigraine preparations, which cannot be classified in the preceding groups.

Clonidine low strength tablets (e.g. 25 mcg) are classified here, even if the indication also may be "opioid withdrawal symptoms".

The DDDs for the substances in this group are based on the prophylaxis of migraine.

List of abbreviations

Last updated: 2016-12-20