S SENSORY ORGANS A formulation approved both for use in the eye/ear is classified in S03, while formulations only licensed for use in the eye or the ear are classified in S01 and S02, respectively. S01 OPHTHALMOLOGICALS Small amounts of antiseptics in eye preparations do not influence the classification, e.g. benzalconium. See also S03 - Ophthalmological and otological preparations. DDDs have been assigned for antiglaucoma preparations only. 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. 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.

Classification of drugs affecting the sensory organs.

Sirarat Sarntivijai