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Delivery of analgesics through an inhalation route

  • US 7,070,764 B2
  • Filed: 01/27/2004
  • Issued: 07/04/2006
  • Est. Priority Date: 05/24/2001
  • Status: Expired due to Fees
First Claim
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1. A condensation aerosol for delivery of a drug selected from the group consisting of acetaminophen, orphenadrine and tramadol, wherein the condensation aerosol is formed by heating a thin layer containing the drug, on a solid support, to produce a vapor of the drug, and condensing the vapor to form a condensation aerosol characterized by less than 10% drug degradation products by weight, and an MMAD of less than 5 microns.

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