CA2538237A1 — Aerosol formulations for delivery of dihydroergotamine to the systemic circulation via pulmonary inhalation
Assigned to MAP Pharmaceuticals Inc · Expires 2005-03-24 · 21y expired
What this patent protects
Pharmaceutical aerosol formulations of dihydroergotamine, or pharmaceutically acceptable salts thereof, to administer dry powders and propellant suspensions via pulmonary aerosol or nasal spray inhalation. Such formulations may be used for the treatment of various disease states …
USPTO Abstract
Pharmaceutical aerosol formulations of dihydroergotamine, or pharmaceutically acceptable salts thereof, to administer dry powders and propellant suspensions via pulmonary aerosol or nasal spray inhalation. Such formulations may be used for the treatment of various disease states and conditions, including, but not limited to, migraine headaches. The dihydroergotamine particles are produced using a supercritical fluid process. The aerosol formulations disclosed have superior stability, purity and comprise particle of respirable size particularly suitable for pulmonary delivery.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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