Delivery of analgesics through an inhalation route

Details Delivery of analgesics through an inhalation route Delivery of analgesics through an inhalation route

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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