Drug – bio-affecting and body treating compositions – Effervescent or pressurized fluid containing – Organic pressurized fluid
Reexamination Certificate
2005-02-15
2005-02-15
Hartley, Michael G. (Department: 1616)
Drug, bio-affecting and body treating compositions
Effervescent or pressurized fluid containing
Organic pressurized fluid
C424S046000, C424S043000, C514S220000, C514S629000, C128S200140, C128S200240
Reexamination Certificate
active
06855310
ABSTRACT:
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 composition aspect of the present invention, the aerosol comprises particles comprising at least 5 percent by weight of acetaminophen, orphenadrine or tramadol. In a method aspect of the present invention, one of acetaminophen, orphenadrine or tramadol is delivered to a mammal through an inhalation route. The method comprises: a) heating a composition, wherein the composition comprises at least 5 percent by weight of acetaminophen, orphenadrine or tramadol, to form a vapor; and, b) allowing the vapor to cool, thereby forming a condensation aerosol comprising particles, which is inhaled by the mammal. In a kit aspect of the present invention, a kit for delivering acetaminophen, orphenadrine or tramadol through an inhalation route to a mammal is provided which comprises: a) a composition comprising at least 5 percent by weight of acetaminophen, orphenadrine or tramadol; and, b) a device that forms an acetaminophen, orphenadrine or tramadol containing aerosol from the composition, for inhalation by the mammal.
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Rabinowitz Joshua D.
Zaffaroni Alejandro C.
Alexza Molecular Delivery Corporation
Haghighatian Mina
Hartley Michael G.
Stracker Elaine C.
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