Polyethylene oxide-based films and drug delivery systems made therefrom
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United States of America Patent
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Feb 23, 2010
Grant Date -
Feb 17, 2005
app pub date -
May 28, 2004
filing date -
Apr 11, 2002
priority date (Note) -
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Abstract
The invention relates to the film products and methods of their preparation that demonstrate a non-self-aggregating uniform heterogeneity. Desirably, the films disintegrate in water and may be formed by a controlled drying process, or other process that maintains the required uniformity of the film. The films contain a polymer component, which includes polyethylene oxide optionally blended with hydrophilic cellulosic polymers. Desirably, the films also contain a pharmaceutical and/or cosmetic active agent with no more than a 10% variance of the active agent pharmaceutical and/or cosmetic active agent per unit area of the film.
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