Dry Powder for Inhalation
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United States of America Patent
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app pub date -
Nov 15, 2010
filing date -
Nov 10, 1999
priority date (Note) -
Abandoned
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Abstract
The aim of the invention is to improve the moisture resistance of dry powder formulations for inhalation which contain a pharmaceutically ineffective carrier of not-inhalable particle size and a finely divided pharmaceutically active compound of inhalable particle size and to also improve the storage stability of said formulations. To this end, magnesium stearate is used in said formulations. On of the features of the inventive dry powder is that a high fine particle dosage or fine particle fraction can be maintained also under relatively extreme temperature and humidity conditions.
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