Powders comprising anti-adherant materials for use in dry powder inhalers
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United States of America Patent
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Nov 5, 2002
Grant Date -
N/A
app pub date -
Jun 16, 1998
filing date -
Jul 24, 1995
priority date (Note) -
Expired
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Abstract
A powder for use in a dry powder inhaler comprises active material and additive material. The additive material comprises an anti-adherent material and the powder includes at least 60% by weight of active material. The inclusion of the additive material in the powder has been found to give an increased respirable fraction of the active material.
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