US Patent 7449174 Delivery of analgesics through an inhalation route
Patent 7449174 was granted and assigned to Alexza Pharmaceuticals on November, 2008 by the United States Patent and Trademark Office.
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The present invention relates to the delivery of analgesics through an inhalation route. Specifically, it relates to aerosols containing acetaminophen, orphenadrine or tramadol that are used in inhalation therapy. In a method aspect of the present invention, an analgesic is administered to a patient through an inhalation route. The method comprises: a) heating a thin layer of acetaminophen, orphenadrine or tramadol, on a solid support to form a vapor; and, b) passing air through the heated vapor to produce aerosol particles having less than 5% acetaminophen, orphenadrine or tramadol degradation products. In a kit aspect of the present invention, a kit for delivering acetaminophen, orphenadrine or tramadol through an inhalation is provided which comprises: a) a thin coating of an acetaminophen, orphenadrine or tramadol composition and b) a device for dispensing said thin coating as a condensation aerosol.
US Patent 07449174 Delivery of analgesics through an inhalation route US Patent 7449174 Delivery of analgesics through an inhalation route
US Patent 07449174 Delivery of analgesics through an inhalation route
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