Method for preparing a solid sustained release form of a functionally active composition
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United States of America Patent
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Sep 24, 1991
Issued Date -
N/A
app pub date -
Apr 26, 1990
filing date -
Nov 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is a sustained release dosage or delivery form, such as a tablet, pill, granule or the like capable of providing sustained release of a functionally active ingredient and the method for its manufacture. The invention comprises a matrix of a polymer containing functionally active ingredient and an excipient shaped at or above the glass transition temperature of said polymer into a form such as a granule, tablet or the like. Preferably the excipient is a microcrystalline cellulose.
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