Phospholipid-based powders for drug delivery
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United States of America Patent
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Oct 28, 2008
Grant Date -
Mar 28, 2002
app pub date -
May 8, 2001
filing date -
May 10, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Phospholipid based powders for drug delivery applications are disclosed. The powders comprise a polyvalent cation in an amount effective to increase the gel-to-liquid crystal transition temperature of the particle compared to particles without the polyvalent cation. The powders are hollow and porous and are preferably administered via inhalation.
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