| 摘要 |
The invention provides the use of a compound of the formula (I) <CHEM> and pharmaceutically acceptable acid addition salts thereof and mixtures thereof, wherein R1 is hydrogen, R2 is C1-4 alkyl or C1-4 alkoxy, the 2-imidazolin-2-ylamino group is in any of the 5-, 6-, 7- or 8-positions of the quinoxaline nucleus, and R3, R4 and R5 are each located in one of the remaining 5-, 6-, 7- or 8- positions of the quinoxaline nucleus and are independently selected from Cl, Br, hydrogen and C1-3 alkyl, for the manufacture of a medicament for reducing or maintaining intraocular pressure in a mammalian eye, for example an eye affected by glaucoma. Also provided is the use of a compound of the formula (II) <CHEM> and pharmaceutically acceptable acid addition salts thereof and mixtures thereof, wherein R1 and R2 are independently selected from hydrogen, C1-4 alkyl and C1-4 alkoxy; the 2-imidazolin-2-ylamino group is in any of the 6-, 7- or 8- positions of the quinoxaline nucleus, R3 is hydrogen or C1-3 alkyl, and R4 and R5 each are located in one of the remaining 6-, 7- or 8-positions of the quinoxaline nucleus and are selected from Cl, Br, H and C1-3 alkyl radicals, for the manufacture of a medicament for reducing or maintaining the intraocular pressure in a mammalian eye, for example an eye affected by glaucoma. The invention also provides topical ophthalmic compositions comprising a compound of the formula (I) or (II) and an ophthalmically acceptable carrier. |
