Active agent dosage form comprising a matrix and at least two insoluble bands
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United States of America Patent
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Jul 9, 1996
Grant Date -
N/A
app pub date -
Feb 24, 1995
filing date -
Feb 24, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is directed to an active agent dosage form which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface two or more insoluble bands. The invention is also directed to the method for making the active agent dosage form.
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