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Details for Patent: 5,965,549

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Summary for Patent: 5,965,549

Title: Ciprofloxacin-hydrocortisone suspension
Abstract:The invention is directed to an aqueous non-ototoxic, topical, otic pharmaceutical composition of matter for treating a mammal consisting essentially of: ciprofloxacin or a pharmaceutically acceptable salt thereof in aqueous solution in an amount effective for antibacterial action; hydrocortisone or a pharmaceutically acceptable salt thereof in an amount effective as an anti-inflammatory agent; polyvinyl alcohol at least about 85% hydrolyzed in an amount effective to suspend the hydrocortisone in solution; water sufficient to produce an aqueous composition; benzyl alcohol in an amount effective for antibacterial action; lecithin in an amount effective for enhancing suspension of other constituents in the composition; and polysorbate ranging from polysorbate 20 to 80 in an amount effective for spreading the preparation on a hydrophobic skin surface to the site of infection or inflammation.
Inventor(s): Purwar; Shivaji (Monroe, CT), Goldman; David (Hillsdale, NJ)
Assignee: Bayer Aktiengesellschaft (Leverkusen, DE)
Application Number:08/801,891
Patent Claim Types:
see list of patent claims
Use; Composition; Formulation;
Patent Metrics:
Source: PatentQuant.com
Field: Not categorized
Back Citations: 10th percentile
Forward Citations: 2nd percentile

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International Patent Family for Patent: 5,965,549

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria214931► subscribe
Australia5984096► subscribe
Australia708540► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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