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Delivery of sumatriptan, frovatriptan or naratriptan through an inhalation route

  • US 7,005,122 B2
  • Filed: 03/03/2004
  • Issued: 02/28/2006
  • Est. Priority Date: 05/24/2001
  • Status: Expired due to Fees
First Claim
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1. A dose form of sumatriptan comprising a condensation aerosolformed by heating a thin layer containing sumatriptan, on a solid support, to produce a vapor of sumatriptan and condensing the vapor to form a condensation aerosolcharacterized by less than 10% sumatriptan degradation products by weight, andan MMAD of less than 5 microns, wherein the dose form comprises less than 20 mg of sumatriptan.

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