| S - Sensory Organs | A formulation approved both for use in the eye/ear is classified in S03. Formulations approved for eye, ear and nose are also classified in S03. Formulations only licensed for use in the eye or the ear are classified in S01 and S02, respectively.
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| S02 - Otologicals | Small amounts of antiseptics in otological preparations do not influence the classification, e.g. benzalconium.
See also S03 - Ophthalmological and otological preparations.
| No DDDs are assigned in this group.
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| S02C - Corticosteroids and Antiinfectives in Combination | This group comprises all otological preparations, which contain corticosteroids and antiinfectives. Preparations may also contain additional drugs.
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| S02CA - Corticosteroids and Antiinfectives in Combination | The preparations are classified according to the corticosteroid. Different antiinfectives may occur at each 5th level.
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