PREPARATION AND PHYSICAL EVALUATION OF MICROCAPSULES OF HYDROPHILIC DRUG CYCLODEXTRIN COMPLEXES

被引:22
作者
LOFTSSON, T
KRISTMUNDSDOTTIR, T
INGVARSDOTTIR, K
OLAFSDOTTIR, BJ
BALDVINSDOTTIR, J
机构
[1] Department of Pharmacy, University of Iceland, IS-101, Reykjavik
关键词
D O I
10.3109/02652049209021252
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
An emulsion-solvent evaporation method for preparation of microcapsules containing water-soluble 2-hydroxypropyl-beta-cyclodextrin complex of a lipophilic water-insoluble drug, hydrocortisone, is described. The release of the drug from the microcapsules was determined in simulated gastric fluid. The drug release rate from the microcapsules could be controlled by addition of a plasticizer and it was sustained over extended time. Addition of solubilizing compounds to the dissolution medium did not affect the drug release rate.
引用
收藏
页码:375 / 382
页数:8
相关论文
共 10 条
[1]  
Chemtob C., Chaumeil J.C., N'Dongo M., Microencapsulation by ethyl-cellulose phase separation: microcapsule characteristics, International Journal of Pharmaceutics, 29, pp. 1-7, (1986)
[2]  
Huang H.-P., Ghebre-Sellassie I., Preparation of microspheres of water-soluble pharmaceuticals, Journal of Microencapsulation, 6, pp. 219-225, (1989)
[3]  
Loftsson T., Brewster M.E., Derendorf H., Bodor N., 2-Hydroxypropyl-β-cyclodextrin: properties and usage in pharmaceutical formulations, Pharmazeutische Zeitung, Wissenschaftsausgabe, 4, 136, pp. 5-10, (1991)
[4]  
Loftsson T., Frioriksdottir H., Olafsdottir B.J., Gudmundsson O., Solubilization and stabilization of drugs through cyclodextrin complexation, Acta Pharmaceutica Nordica, 3, pp. 215-217, (1991)
[5]  
Loftsson T., Olafsdottir B.J., Bodor N., The effects of cyclodextrins on transdermal delivery of drugs, European Journal of Pharmaceutics and Biopharmaceutics, 37, pp. 30-33, (1991)
[6]  
Loftsson T., Olafsdottir B.J., Frioriksdottir H., Comparative study on inclusion complexation of acetylsalicyclic acid, cholecalciferol and melphalan with β- and γ-cyclodextrin and some of their derivatives, Acta Pharmaceutica Nordica, 2, pp. 303-312, (1990)
[7]  
Luzzi L., Palmieri A., An overview of pharmaceutical applications, Biomedical Applications of Microencapsulations, pp. 1-17, (1984)
[8]  
Pitha J., Milecki J., Fales H., Pannell L., Uekama K., Hydroxypropyl-β-cyclodextrin: Preparation and characterization
[9]  
effects on solubility of drugs, International Journal of Pharmaceutics, 29, pp. 73-82, (1986)
[10]  
Racz I., Drug formulation, Drug Formulation., pp. 364-367, (1989)