TIMED-RELEASE PHARMACEUTICAL PREPARATION
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United States of America Patent
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Issued Date -
Dec 23, 2010
app pub date -
Jun 30, 2008
filing date -
Feb 15, 2008
priority date (Note) -
Abandoned
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Abstract
The timed-release pharmaceutical preparation of the invention is characterized by having a core containing a drug and a water-swellable substance, and a film containing a water-insoluble polymer, a plasticizer, and a water-insoluble filler, the core being coated with the film.With the timed-release pharmaceutical preparation of the present invention, the drug-release-initiation time and the drug release rate after the initiation of drug release can be controlled as desired.
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