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Last Updated: January 31, 2023

Details for Patent: 8,193,196

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Which drugs does patent 8,193,196 protect, and when does it expire?

Patent 8,193,196 protects XIFAXAN and is included in one NDA.

This patent has thirty-six patent family members in twenty-seven countries.

Summary for Patent: 8,193,196
Title:Polymorphous forms of rifaximin, processes for their production and use thereof in the medicinal preparations
Abstract: Crystalline polymorphous forms of the rifaximin (INN) antibiotic named rifaximin .delta. and rifaximin .epsilon. useful in the production of medicinal preparations containing rifaximin for oral and topical use and obtained by means of a crystallization process carried out by hot-dissolving the raw rifaximin in ethyl alcohol and by causing the crystallization of the product by addition of water at a determinate temperature and for a determinate period of time, followed by a drying carried out under controlled conditions until reaching a settled water content in the end product, are the object of the invention.
Inventor(s): Viscomi; Giuseppe Claudio (Sasso Marconi, IT), Campana; Manuela (Bologna, IT), Confortini; Donatella (Calderara di Reno, IT), Barbanti; Maria Miriam (Bologna, IT), Braga; Dario (Bologna, IT)
Assignee: Alfa Wassermann, S.p.A. (Bologna, IT)
Application Number:11/658,702
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,193,196
Patent Claim Types:
see list of patent claims
Use; Compound; Process; Composition; Formulation; Dosage form; Delivery;

Drugs Protected by US Patent 8,193,196

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 021361-001 May 25, 2004 RX Yes Yes See Plans and Pricing See Plans and Pricing Y Y See Plans and Pricing
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 021361-002 Mar 24, 2010 RX Yes Yes See Plans and Pricing See Plans and Pricing Y Y TREATMENT OF IRRITABLE BOWEL SYNDROME WITH DIARRHEA (IBS-D) IN ADULTS AND SYMPTOMS THEREOF. See Plans and Pricing
Salix Pharms XIFAXAN rifaximin TABLET;ORAL 021361-002 Mar 24, 2010 RX Yes Yes See Plans and Pricing See Plans and Pricing Y Y TREATMENT OF IRRITABLE BOWEL SYNDROME WITH DIARRHEA (IBS-D) IN ADULTS. See Plans and Pricing
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 8,193,196

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
05004695Mar 03, 2005
PCT Information
PCT FiledFebruary 27, 2006PCT Application Number:PCT/EP2006/001755
PCT Publication Date:September 14, 2006PCT Publication Number: WO2006/094662

International Family Members for US Patent 8,193,196

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2006222312 See Plans and Pricing
Brazil PI0608073 See Plans and Pricing
Canada 2594789 See Plans and Pricing
China 1900077 See Plans and Pricing
Denmark 1698630 See Plans and Pricing
European Patent Office 1698630 See Plans and Pricing
Spain 2522895 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.