| abstract |
The present invention is to provide a novel water channel opener having the activity to open an AQP water channel and a pharmaceutical composition for ophthalmic use comprising the opener as an active ingredient, particularly a lacrimation stimulant,. The present invention is directed to a water channel opener composition which comprises a ligand of lipocalin, particularly a compound having odorant binding protein-binding activity, and a pharmaceutical composition for ophthalmic use which comprises the opener as an active ingredient, particularly a lacrimation stimulant composition. |