AU2013255640B2 — New alfentanil composition for the treatment of acute pain
Assigned to Orexo AB · Expires 2017-06-15 · 9y expired
What this patent protects
There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of l…
USPTO Abstract
There is provided pharmaceutical compositions for the treatment of pain e.g. short-term pain, which compositions comprise a mixture comprising: (a) microparticles of alfentanil, or a pharmaceutically acceptable salt thereof, which microparticles are presented on the surfaces of larger carrier particles; (b) a water-soluble weak base; and (c) a compound which is a weak acid, which acid is presented in intimate mixture with the microparticles of alfentanil or salt thereof. The composition may further comprise a disintegrant. The acid is preferably citric acid.
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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