Solid, rapidly released medicament preparations containing dihydropyridines, and processes for their preparation
CA 1184118 A · Owner: Bayer Aktiengesellschaft · Inventors: Hegasy, Ahmed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Solid, rapidly released medicament preparations containing dihydropyridines, and processes for their preparation ABSTRACT OF THE DISCLOSURE, Solid dihydropyridines e.g. nifedipine and nimodipine, preparations having a maximum standard deviation of the active compound content of 3% contain 1 part by weight of nifedipine, 2 to 6 parts by weight of PVP with a mean molecular weight of 15,000 to 50,000, 3.5 to 15 parts by weight of cellulose, 0.25 to 4 parts by weight of starch and 0.5 to 4 parts by weight of cross-linked insoluble PVPP and, if appropriate, one or more further pharmaceutical auxiliaries and excipients. These preparations show a good release of dihydropyridine with good content …
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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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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
Timeline From CIPO dates
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.