Method for reducing intraocular pressure in the mammalian eye by

Abstract

Ophthalmic compositions and a method are disclosed for treating glaucoma and/or ocular hypertension in the mammalian eye by topically administering to the mammalian eye the ophthalmic composition of the invention which contains as the active ingredient one or more gamma aminobutyric acid agonist compounds. Examples of gamma aminobutyric acid agonists utilized in the ophthalmic composition and method of treatment are: gamma aminobutyric acid (GABA), 5-(aminomethyl)-3(2H)-isoxazolone (muscimol), 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol (THIP) and a pharmaceutically acceptable salt of 4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol, piperidine-4-sulfonic acid and a pharmaceutically acceptable salt of piperidine-4-sulfonic acid, 3-(2H)-isothiazolone, 5-(aminomethyl) (thiomuscimol), 7-chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one (diazepam), 7-chloro-1-[2-(diethylamino)ethyl]-5-(2-fluorophenyl)-1,3-dihydro-2H-1,4-b enzodiazaepin-2-one (flurazepam) and a pharmaceutically acceptable salt of 7-chloro-1-[2-(diethylamino)ethyl]-5-(2-fluorophenyl)-1,3-dihydro and 7-chloro-N-methyl-5-phenyl-3H-1,4-benzodiazepin-2-amine 4-oxide (chlordiazepoxide) and a pharmaceutically acceptable salt of 7-chloro-N-methyl-5-phenyl-3H-1,4-benzodiazepin-2-amine 4-oxide.