US Patent 7491047 Delivery of antihistamines through an inhalation route
Patent 7491047 was granted and assigned to Alexza Pharmaceuticals on February, 2009 by the United States Patent and Trademark Office.
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The present invention relates to the delivery of antihistamines through an inhalation route. Specifically, it relates to aerosols containing antihistamines that are used in inhalation therapy. In a method aspect of the present invention, an antihistamine is delivered to a patient through an inhalation route. The method comprises: a) heating a composition, wherein the composition comprises an antihistamine, to form a vapor; and, b) allowing the vapor to cool, thereby forming a condensation aerosol comprising particles with less than 5% antihistamine drug degradation products. In a kit aspect of the present invention, a kit for delivering an antihistamine through an inhalation route is provided which comprises: a) a thin coating of an antihistamine drug composition and b) a device for dispensing said thin coating as a condensation aerosol.
US Patent 07491047 Delivery of antihistamines through an inhalation route US Patent 7491047 Delivery of antihistamines through an inhalation route
US Patent 07491047 Delivery of antihistamines through an inhalation route
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