Ophthalmic antibiotic drug formulations containing a cyclodextrin compound and cetyl pyridinium chloride
CA 2477049 A1 · Owner: Singh, Satish K. · Inventors: Singh, Satish K.; Bandyopadhyay, Paramita; Hassan, Syed
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a pharmaceutical composition suitable for topical administration to an eye, the composition comprising (a) an antibiotic antibiotic drug, for example linezolid in a therapeutically or , prophylactically effective drug concentration (b) as a solubilizing agent, a , pharmaceutically acceptable cyclodextrin compound in a concentration sufficient to maintain the drug in solution at such a drug concentration and , (c) as a preservative, cetyl pyridium chloride. The composition is particularly useful for the treatment and/or prevention of eye infections due to gram positive bacteria.
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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 February 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2025.
- 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.