Sustained release dosage form for use with tissues of the oral cavity
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United States of America Patent
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-
Dec 26, 1989
Grant Date -
N/A
app pub date -
Aug 31, 1987
filing date -
Sep 1, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane. A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entire oral cavity sustained release dosage form. A drug impermeable layer can be formed between the adhesive layer and the drug reservoir.
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