Use of diphenylethane derivatives for the manufacture of a medicament for the treatment of glaucoma

摘要

The present invention provides a novel drug for treating glaucoma. The present invention relates to a therapeutic agent for glaucoma and an ocular hypotensive agent, which comprise an aminoalkoxybibenzyl represented by the formula (I): wherein R<1> represents a hydrogen atom, a C1-C5 alkoxy group, etc.; R<2> represents a hydrogen atom, a halogen atom, etc.; R<3> represents a hydrogen atom, a hydroxyl group, -O-CO-(CH2)l-COOH (wherein l is an integer of 1 to 3), etc.; and R<4> represents -NR<5>R<6> (wherein R<5> and R<6> independently represent a hydrogen atom or a C1-C8 alkyl group), etc. or a salt thereof as an active ingredient.