Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1989-05-23
1991-11-12
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424 11, 264 43, 4284022, A61K 3722
Patent
active
050646559
ABSTRACT:
A liposome gel composition and method of preparing the same. The composition is composed of charged liposomes, at a relatively low lipid concentration, in a low-conductivity medium. The composition preferably contains a zwitterionic compound at its isoelectric point. The liposomes can be designed for cosmetic use, transdermal drug delivery, or enhanced retention on mucosal tissues, such as for ophthalmic use.
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Martin Francis J.
Morano Jacqueline K.
Uster Paul S.
Dehlinger Peter J.
Liposome Technology, Inc.
McPhail Donald R.
Page Thurman K.
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