Drug – bio-affecting and body treating compositions – Identification or warning feature – Taste or smell or chemical irritation to the eye – nose – or...
Patent
1984-12-06
1986-07-22
Niebling, John F.
Drug, bio-affecting and body treating compositions
Identification or warning feature
Taste or smell or chemical irritation to the eye, nose, or...
424 16, 424 19, 424 21, 604890, 604892, A61K 920, A61K 924
Patent
active
046018930
ABSTRACT:
Laminate device for the controlled and prolonged release of at least one active agent to an ambient environment comprising at least one core sheet, said core sheet or sheets comprising said agent or agents in a polymer matrix, and, in a preferred embodiment, a porosity enhancing agent in admixture with said agent; said core sheet or sheets being alternately sandwiched or interposed between coextensive inert polymeric films substantially impermeable to said environment and to said agent or agents, said device being perforated by one or a plurality of macroholes extending through said sheets and said films. In a modification of said device the perimeter edge thereof is coated by an inert polymeric film substantially impermeable to said environment and to said agent or agents. Also included are methods for making such a device.
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Rhine et al., "Controlled Release of Bioactive Materials," R. Baker, ed., Academic Press, pp. 177-187 (1980).
Chapman Terryence
Frost Albert E.
Knuth Charles J.
Niebling John F.
Pfizer Inc.
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