Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Liposomes
Patent
1990-11-08
1992-04-28
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Liposomes
424420, 424438, 424457, 424467, 424468, 424473, 6048921, A61K 3722
Patent
active
051087561
ABSTRACT:
This invention relates to devices useful for the controlled delivery of one or more beneficial agents to an environment of use. More specifically, this invention concerns such devices which are powered by lyotropic liquid crystals. This invention also relates to the controlled delivery of one or more beneficial agents to an aqueous environment of use through the use of such lyotropic liquid crystal powered dispensing devices. Also disclosed are methods for the controlled delivery of one or more beneficial agents to an aqueous environment of use which comprise administering to or otherwise placing the devices of this invention in the environment of use.
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Lumb J. Trevor
McPhail Donald R.
Olson A. Dean
Page Thurman K.
Pfizer Inc.
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