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Expired Canadian patentCanada

Improved treatment of migraine headache

CA 2269745 C · Owner: Plachetka, John R. · Inventors: Plachetka, John R.; Chowhan, Zakauddin T.

CIPO record

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Abstract From the Canadian patent

This invention comprises a non-vasoactive supra-vasoactive syndrome ("SVS") , minimized dosage form for treatment of migraine in a human comprising (i) rapid availability metoclopramide in at least about an effective local gastrointestinal amount; (ii) at least one long acting NSAID such as naproxen sodium in a therapeutically effective amount; (iii) wherein said dosage form is a coordinated dosage form; and, (iv) wherein the dosage form is absent 5HT agonist vasoactive agents and , preparation thereof. Acid-base stable dosage forms are noted. This invention further comprises methods of migraine treatment and , methods for rapid introduction of oral NSAID into the small bowel.

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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 November 12, 1997 and granted July 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 12, 1997
GrantedJuly 29, 2003
Term endedNovember 12, 2017
Patent numberCA 2269745 C
Classification (IPC)A61K31/16 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 12, 1997Patent grantedJuly 29, 2003Term endedNov 12, 2017

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.