Methods for preparing pharmaceutical compositions
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United States of America Patent
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Issued Date -
Dec 28, 2006
app pub date -
Sep 15, 2004
filing date -
Sep 15, 2003
priority date (Note) -
Abandoned
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Abstract
The present invention relates to improvements in dry powder formulations comprising a pharmaceutically active agent for administration by inhalation, and in particular to methods of preparing dry powder compositions with improved properties. In particular, spray drying processes are adapted and adjusted to obtain active particles with higher fine particle fractions and fine particle doses.
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