Method and apparatus for pulmonary administration of dry powder .alpha.1-antitrypsin
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United States of America Patent
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Nov 30, 1999
Issued Date -
N/A
app pub date -
Jul 13, 1998
filing date -
Apr 14, 1995
priority date (Note) -
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Abstract
Dry powders of .alpha.1-antitrypsin are administered pulmonarily to patients to treat, for example, certain types of emphysema. The dry powder compositions may comprise aggregates of fine particles, which aggregates are friable and break-up upon dispersion in a flowing gas stream. Typically, the dispersed powders are captured in a chamber and subsequently inhaled by a patient for pulmonary treatment of emphysema and other conditions.
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