Formulations for detecting asthma
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United States of America Patent
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-
Oct 8, 2002
Grant Date -
N/A
app pub date -
Apr 21, 2000
filing date -
Apr 21, 1999
priority date (Note) -
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Abstract
Improved formulations for detecting asthma are disclosed. The formulations comprise methacholine or histamine in a dry particulate form wherein the particles are of a respirable size, preferably 2 .mu.m to 5 .mu.m. The dry formulations can be inhaled directly from an inhaler and can be used to detect airway narrowing which is diagnostic of asthma.
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