Method of dehydrating vesicle preparations for long term storage

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United States Patent 5,089,181
Hauser February 18, 1992
Method of dehydrating vesicle preparations for long term storage
Abstract
In the presence of a preserving additive, unilamellar phospholipid vesicle preparations are preserved during dehydration. Dehydration is effected by subjecting said preparations to a drying operations capable of causing flash evaporation.
Inventors: Hauser; Helmut O. (Zurich, CH)
Assignee: Vestar, Inc. (Pasadena, CA)
Appl. No.: 430905
Filed: October 30, 1989
Current U.S. Class: 424/1.21; 264/4.1; 264/4.3; 424/450; 436/829
Intern'l Class: A61K 009/127; A61K 009/133; B01J 013/02
Field of Search: 264/4.1,4.3 424/450,7.1 436/829