Guidelines for ATC classification and DDD assignment - WHOCC

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The classification at the 5th levels is based on the antispasmodic
component. At each 5th level several psycholeptics may occur. When
classifying such combined products, it is necessary to look at the main
indication and the composition, to see if the preparation should be
classified in A03 or in N05 - Psycholeptics (see comments under A03).
A03CA Synthetic anticholinergic agents in combination with psycholeptics
General comments, see A03C.
Combinations with more than one antispasmodic substance are classified
in a ranking according to the ATC code. A substance classified in
A03CA01 takes precedence over a substance classified in A03CA02 etc.
A03CB Belladonna and derivatives in combination with psycholeptics
General comments, see A03C.
Combinations with more than one antispasmodic are classified in a
ranking according to the ATC code. A substance classified in A03CB01
takes precedence over a substance classified in A03CB02 etc.
A03CC Other antispasmodics in combination with psycholeptics
This group comprises combined preparations with psycholeptics, which
are not covered by A03CA and A03CB.
A03D ANTISPASMODICS IN COMBINATION WITH ANALGESICS
This group is completely parallel to A03C.
The classification at the 5th levels is based on the antispasmodic
component. At each 5th level several analgesics may occur.
Antispasmodics in combination with analgesics and other drugs (excl.
psycholeptics) are classified in this group.
When classifying these combination products, it is necessary to look at
the indications and the composition to see if the preparation should be
classified in A03 or in N02 - Analgesics.
Opioid analgesics in combination with antispasmodics, see N02AG -
Opioids in combination with antispasmodics. Ethylmorphine is not