Guidelines for ATC classification and DDD assignment - WHOCC

S02D OTHER OTOLOGICALS
This group comprises ear preparations, which cannot be classified in the
preceding groups.
S02DA Analgesics and anesthetics
This group comprises e.g. preparations with analgesics and/or local
anesthetics.
S02DC Indifferent preparations
This group comprises e.g. oil-preparations used to remove ear wax.
S03 OPHTHALMOLOGICAL AND OTOLOGICAL
PREPARATIONS
This group comprises preparations which can be used in both eye and
ear.
Small amounts of antiseptics (e.g. benzalconium) in eye/ear preparations
do not influence the classification.
No DDDs are assigned in this group.
S03A ANTIINFECTIVES
S03AA Antiinfectives
This group comprises plain and combined antiinfective preparations for
use in eye/ear.
Combined preparations are classified at a separate 5th level, S03AA30 -
antiinfectives, combinations. This level includes combinations of
different antiinfectives and combinations of antiinfectives and other
substances.
Combinations with corticosteroids are classified in S03C -
Corticosteroids and antiinfectives in combination.
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