Controlled release drug dispersion delivery device
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United States of America Patent
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Nov 22, 1994
Issued Date -
N/A
app pub date -
Sep 8, 1993
filing date -
Jul 29, 1982
priority date (Note) -
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Abstract
A device for the controlled delivery of a beneficial agent as a gelatinous dispersion consisting of (i) a core which contains a beneficial agent, a polymer which forms gelatinous microscopic particles upon hydration and if desired an agent to modulate the hydration of the polymer; and (ii) an impermeable, insoluble coating which adheres to and surrounds the core and contains apertures which provide an area for the hydration and release of a dispersion comprising gelatinous microscopic particles.
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