TOPICALLY EFFECTIVE OCULAR HYPOTENSIVE ACETAZOLAMIDE AND ETHOXYZOLAMIDE FORMULATIONS IN RABBITS

被引:54
作者
LOFTSSON, T [1 ]
FRIORIKSDOTTIR, H [1 ]
STEFANSSON, E [1 ]
THORISDOTTIR, S [1 ]
GUOMUNDSSON, O [1 ]
SIGTHORSSON, T [1 ]
机构
[1] UNIV ICELAND,FAC MED,DEPT OPHTHALMOL,REYKJAVIK,ICELAND
关键词
D O I
10.1111/j.2042-7158.1994.tb03835.x
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The effect of topically active 2-hydroxypropyl-beta-cyclodextrin (HP-beta-CyD) eye-drop formulations containing solutions of acetazolamide, ethoxyzolamide or timolol on the intra-ocular pressure (IOP) was investigated in normotensive conscious rabbits. Both acetazolamide and ethoxyzolamide were active but their IOP-lowering effect was less than that of timolol. The IOP-lowering effects of acetazolamide and ethoxyzolamide and that of timolol appeared to be to some extent additive. Combination of acetazolamide and timolol or ethoxyzolamide and timolol in one HP-beta-CyD formulation resulted in a significant increase in the duration of activity compared with HP-beta-CyD formulations containing only acetazolamide, ethoxyzolamide or timolol. Also, it was possible to increase the IOP-lowering effect of acetazolamide by formulating the drug as a suspension in an aqueous HP-beta-CyD vehicle.
引用
收藏
页码:503 / 504
页数:2
相关论文
共 7 条
[1]  
FRIEDMAN Z, 1985, ARCH OPHTHALMOL-CHIC, V103, P936
[2]  
LOFTSSON T, 1991, EUR J PHARM BIOPHARM, V37, P30
[3]  
LOFTSSON T, 1991, PZ (Pharmazeutische Zeitung) Wissenschaft, V136, P5
[4]   2-HYDROXYPROPYL-BETA-CYCLODEXTRIN IN TOPICAL CARBONIC-ANHYDRASE INHIBITOR FORMULATIONS [J].
LOFTSSON, T ;
FRITHRIKSDOTTIR, H ;
THORISDOTTIR, S ;
STEFANSSON, E ;
SIGURTHARDOTTIR, AM ;
GUTHMUNDSSON, O ;
SIGTHORSSON, T .
EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES, 1994, 1 (04) :175-180
[5]   HYDROXYPROPYL-BETA-CYCLODEXTRIN - PREPARATION AND CHARACTERIZATION - EFFECTS ON SOLUBILITY OF DRUGS [J].
PITHA, J ;
MILECKI, J ;
FALES, H ;
PANNELL, L ;
UEKAMA, K .
INTERNATIONAL JOURNAL OF PHARMACEUTICS, 1986, 29 (01) :73-82
[6]  
Szejtli J, 1988, CYCLODEXTRIN TECHNOL, P39
[7]  
Tous S. S., 1992, STP PHARMA SCI, V2, P125