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Last Updated: September 30, 2020

DrugPatentWatch Database Preview

Details for Patent: 8,642,573

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Which drugs does patent 8,642,573 protect, and when does it expire?

Patent 8,642,573 protects XIFAXAN and is included in one NDA.

This patent has forty-four patent family members in nineteen countries.

Summary for Patent: 8,642,573
Title:Methods of treating hepatic encephalopathy
Abstract: The application describes treatment of hepatic encephalopathy using gastrointestinal specific antibiotics. One example of a gastrointestinal specific antibiotic is rifaximin. The instant application also provides methods for determining if a subject has a neurological condition or hepatic encephalopathy by determining the critical flicker frequency and/or the venous ammonia level of the subject at two or more time points. The invention further provides methods for treating these subjects.
Inventor(s): Forbes; William (Raleigh, NC), Merchant; Kunal (Durham, NC), Bortey; Enoch (Chapel Hill, NC), Shaw; Audrey (Durham, NC)
Assignee: Salix Pharmaceuticals, Ltd (Raleigh, NC)
Application Number:13/737,535
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,642,573
Patent Claim Types:
see list of patent claims
Use;

Drugs Protected by US Patent 8,642,573

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 022554-001 Mar 24, 2010 RX Yes Yes   Start Trial   Start Trial REDUCTION IN RISK OF OVERT HEPATIC ENCEPHALOPATHY (HE) RECURRENCE   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:

Express Scripts
Moodys
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Boehringer Ingelheim
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