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Boehringer Ingelheim
Harvard Business School

Last Updated: October 30, 2020

DrugPatentWatch Database Preview

Details for Patent: 8,450,287

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Which drugs does patent 8,450,287 protect, and when does it expire?

Patent 8,450,287 protects TOBRADEX ST and is included in one NDA.

Summary for Patent: 8,450,287
Title:Topical ophthalmic compositions containing tobramycin and dexamethasone
Abstract: Ophthalmic pharmaceutical compositions containing tobramycin, dexamethasone and deacetylated xanthan gum are described. The compositions provide longer ocular retention for enhanced ocular bioavailability of tobramycin and dexamethasone. In a preferred embodiment, the compositions also provide for improved suspension of dexamethasone. The concentration of ionizable species in the compositions is controlled so as to prevent precipitation of the xanthan gum as a result of ionic interactions between tobramycin and xanthan gum, while allowing for a restoration of viscosity upon topical application of the compositions to the eye. The use of deacetylated xanthan gum is disclosed, so as to avoid formulation instability caused by pH drift during storage.
Inventor(s): Kabra; Bhagwati P. (Euless, TX)
Assignee: Alcon Research, Ltd. (Fort Worth, TX)
Application Number:13/311,716
Patent Claim Types:
see list of patent claims

Drugs Protected by US Patent 8,450,287

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Eyevance TOBRADEX ST dexamethasone; tobramycin SUSPENSION/DROPS;OPHTHALMIC 050818-001 Feb 13, 2009 RX Yes Yes   Start Trial   Start Trial Y   Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim

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