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-six patent family members in twenty 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 | 021361-002 | Mar 24, 2010 | RX | Yes | Yes | ⤷ Try a Trial | ⤷ Try a Trial | REDUCTION IN RISK OF OVERT HEPATIC ENCEPHALOPATHY (HE) RECURRENCE | ⤷ Try a 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 |
International Family Members for US Patent 8,642,573
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
---|---|---|---|---|---|
Australia | 2009298389 | ⤷ Try a Trial | |||
Australia | 2010260089 | ⤷ Try a Trial | |||
Australia | 2010271070 | ⤷ Try a Trial | |||
Brazil | PI0920465 | ⤷ Try a Trial | |||
Brazil | PI1010028 | ⤷ Try a Trial | |||
Canada | 2739436 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |