Process for preparing a controlled release composition
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United States of America Patent
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Aug 15, 2000
Grant Date -
N/A
app pub date -
Jul 7, 1998
filing date -
Jul 10, 1997
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Abstract
A process for preparing a controlled release composition with a controlled release matrix and containing a pharmaceutically active ingredient, which comprises granulating the active ingredient with a molten matrix material or with a matrix material while it is being melted and with optional additional inactive materials at a first elevated temperature, then cooling and screening the granulate, forming a fluidized bed of the resulting material at a second elevated temperature, and recovering the resulting product; and the product formed by the process.
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