Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1990-10-29
1991-12-31
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424 11, 424484, 264 41, 264 43, 264 47, 436829, A61K 3722, A61K 4300, B01J 1302, B01J 1318
Patent
active
050770578
ABSTRACT:
Liposome and lipidic particle formulations of compounds are prepared by dissolving in a solution of liposome-forming lipids in an aprotic solvent such as DMSO, optionally containing a lipid-solubilizing amount of a lower alkanol, and injecting the resulting solution into an aqueous solution. The resulting liposome or lipidic particle suspension may then be dialyzed or otherwise concentrated. This method is particularly useful for compounds which are poorly-soluble in aqueous solution, but is generally useful for any compound or combination of compounds which can be dissolved in the aprotic solvent or aprotic solvent/lower alkanol mixture.
REFERENCES:
patent: 4508703 (1985-04-01), Redziniak et al.
patent: 4619913 (1986-10-01), Luck et al.
patent: 4812312 (1989-03-01), Lopez-Bergstein et al.
patent: 4839175 (1989-06-01), Guo et al.
F. C. Szoka et al., Antimicrob Agents Chemother (1987) 31:421-29.
Azpuru Carlos
Page Thurman K.
The Regents of the University of California
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