Oral administration of 6-hydroxy-oxymorphone for use as an analgesic
CA 2452874 A1 · Owner: Mccall, Troy · Inventors: Lee, David; Smith-Carliss, Richard; Mccall, Troy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of treating pain, a patient is administered a pharmaceutical composition of 6-hydroxy oxymorphone in an amount sufficient to induce analgesia. In one embodiment, the pharmaceutical composition is administered orally. Any known or later developed method of oral delivery may be used. To achieve the desired analgesic effect, blood plasma levels of 6-hydroxy oxymorphone are raised to at least approximately 0.2 ng/mL. Most preferably blood plasma levels of 6-hydroxy oxymorphone range at least 0.3 ng/mL during treatment. Administration of compositions containing 6-hydroxy oxymorphone and one or more carriers, diluents, and excipients in an amount sufficient to induce analgesia …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2024.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.