Pharmaceutical composition comprising exifone and water-soluble polymer
CA 1319110 C · Owner: Yasumura, Mitsuru · Inventors: Toyoshima, Kenzo; Nakahashi, Nobumitsu; Yasumura, Mitsuru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a pharmaceutical composition comprising exifone and a water-soluble polymer. This composition is useful as a cerebral metabolic improving agent and is effective in the treatment of senile dementia, cerebrovascular dementia and the like. This composition overcomes the drawback that exifone is sparingly soluble in water. It is highly bioavailable. A process for preparing the composition by converting exifone and a water soluble polymer to a solid dispersion or mixing exifone with a water soluble polymer.
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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
- Granted June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.