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Delivery of sedative-hypnotics through an inhalation route

  • US 7,445,768 B2
  • Filed: 08/07/2006
  • Issued: 11/04/2008
  • Est. Priority Date: 05/24/2001
  • Status: Expired due to Fees
First Claim
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1. A condensation aerosol for delivery of zaleplon formed by heating a composition containing zaleplon coated on a solid support to form a vapor and condensing the vapor to form a condensation aerosol comprising particles, wherein the particles comprise at least 10 percent by weight of zaleplon and less than 5 percent by weight of zaleplon degradation products, and the condensation aerosol has an MMAD of less than 5 microns.

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