Methods for wet granulating azithromycin
CA 2470055 A1 · Owner: Fergione, Michael Bruce · Inventors: Johnson, Barbara Alice; Fergione, Michael Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of forming non-dihydrate azithromycin granules, comprising mixing non-dihydrate azithromycin particles with a granulating amount of a granulating liquid and, optionally, with , particles of one or more excipients to form wet granules which comprise nondihydrate azithromycin and the granulating liquid. The granules are then dried to remove the granulating liquid. The invention further relates to a pharmaceutical composition comprising granules of a non-dihydrate azithromycin and at least one pharmaceutically acceptable excipient. The invention also relates to pharmaceutical formulations comprising granules of non-dihydrate azithromycin. The …
Read the whole patent
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 December 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2024.
- 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.