A remedy for glaucoma containing 5-{1-hydroxy-2-[2-(2-methoxyphenoxy)ethylamino]ethyl}-2-methyl-benzene sulfonamide represented by formula (I) or an acid salt thereof as the active ingredient. The remedy is free from side effects and stable and has an excellent ocular tension depressant effect at a reduced concentration, thus being useful as a remedy for glaucoma.
