Guidelines for ATC classification and DDD assignment - WHOCC

N05AN Lithium
The DDD is based on the prophylaxis of mania or depression.
Antidepressants, see N06A.
N05AX Other antipsychotics
This group comprises antipsychotics which cannot be classified in the
preceding groups.
N05B ANXIOLYTICS
This group comprises preparations used in the treatment of neuroses and
psychosomatic disorders associated with anxiety and tension, e.g.
benzodiazepines.
See also:
N05A - Antipsychotics
N05C - Hypnotics and sedatives
Usually the presence of an anxiolytic (or other psycholeptics) in
combined preparations must be regarded as being of secondary
importance and the preparations should be classified in the respective
therapeutic groups (e.g. A03C - Antispasmodics in combination with
psycholeptics, N02 - Analgesics).
Combined preparations used mainly for the treatment of anxiety are
classified at separate 5th levels using the corresponding 50-series.
The group is subdivided according to chemical structure.
The DDDs are based on the treatment of anxiety.
N05BA Benzodiazepine derivatives
Benzodiazepines used mainly in the treatment of sleep disturbances are
classified in N05C - Hypnotics and sedatives.
Benzodiazepines used mainly in the treatment of epilepsy are classified
in N03 - Antiepileptics.
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