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United States of America Patent
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Apr 9, 1991
Issued Date -
N/A
app pub date -
May 11, 1989
filing date -
Apr 28, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dosage form is disclosed comprising a coat that surrounds a drug. The coat comprises a subcoat and an overcoat thermally annealed to provide a single unit coat around the drug.
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