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Serving leading biopharmaceutical companies globally:

Deloitte
Healthtrust
US Army
Covington
Julphar
Fish and Richardson
Argus Health
Moodys
Medtronic
Mallinckrodt

Generated: October 23, 2017

DrugPatentWatch Database Preview

Rifaximin - Generic Drug Details

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What are the generic drug sources for rifaximin and what is the scope of rifaximin patent protection?

Rifaximin
is the generic ingredient in one branded drug marketed by Salix Pharms and is included in two NDAs. There are twenty-six patents protecting this compound and one Paragraph IV challenge. Additional information is available in the individual branded drug profile pages.

Rifaximin has two hundred and thirty-eight patent family members in thirty-six countries.

There are eleven drug master file entries for rifaximin. Six suppliers are listed for this compound.

Summary for Generic Name: rifaximin

US Patents:26
Tradenames:1
Applicants:1
NDAs:2
Drug Master File Entries: see list11
Suppliers / Packagers: see list6
Bulk Api Vendors: see list56
Clinical Trials: see list107
Patent Applications: see list2,709
Therapeutic Class:Antibacterials
Formulation / Manufacturing:see details
Drug Prices:see low prices
DailyMed Link:rifaximin at DailyMed

Pharmacology for Ingredient: rifaximin

Ingredient-typeRifamycins
Drug ClassRifamycin Antibacterial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► Subscribe► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► Subscribe ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► Subscribe ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► Subscribe► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► SubscribeY ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL021361-001May 25, 2004RXYesYes► Subscribe► SubscribeY ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► SubscribeY ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL021361-001May 25, 2004RXYesYes► Subscribe► SubscribeY ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL021361-001May 25, 2004RXYesYes► Subscribe► SubscribeY ► Subscribe
Salix Pharms
XIFAXAN
rifaximin
TABLET;ORAL022554-001Mar 24, 2010RXYesYes► Subscribe► SubscribeY ► Subscribe
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Non-Orange Book Patents for Generic Ingredient: rifaximin

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
7,244,412Methods for manipulating upper gastrointestinal transit, blood flow, and satiety, and for treating visceral hyperalgesia► Subscribe
7,048,906Methods of diagnosing and treating small intestinal bacterial overgrowth (SIBO) and SIBO-related conditions► Subscribe
8,197,805Methods of treating autoimmune diseases caused by small intestinal bacterial overgrowth► Subscribe
9,629,829Methods of treating hepatic encephalopathy► Subscribe
8,562,952Methods for manipulating satiety► Subscribe
8,110,177Methods of diagnosing and treating small intestinal bacterial overgrowth (SIBO) and SIBO-related conditions► Subscribe
9,358,276Methods of diagnosing and treating small intestinal bacterial overgrowth (SIBO) and SIBO-related conditions► Subscribe
7,056,686Method of diagnosing fibromyalgia caused by small intestinal bacterial overgrowth► Subscribe
5,977,175 Methods and compositions for improving digestion and absorption in the small intestine► Subscribe
6,562,629 METHOD OF DIAGNOSING IRRITABLE BOWEL SYNDROME AND OTHER DISORDERS CAUSED BY SMALL INTESTINAL BACTERIAL OVERGROWTH BY DETECTING THE PRESENCE OF ANTI-SACCHAROMYCES CERIVISIAE ANTIBODIES (ASCA) IN HUMAN SERUM► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Ingredient: rifaximin

Country Document Number Estimated Expiration
Norway20074988► Subscribe
Moldova, Republic of3653► Subscribe
World Intellectual Property Organization (WIPO)2011032085► Subscribe
European Patent Office1811303► Subscribe
Canada2922728► Subscribe
ItalyMI20032144► Subscribe
Serbia54569► Subscribe
SloveniaEP1676847► Subscribe
Slovenia1698630► Subscribe
Moldova, Republic of4081► 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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For more information try a trial or see the database preview and plans and pricing

Serving leading biopharmaceutical companies globally:

Federal Trade Commission
Daiichi Sankyo
Teva
McKinsey
Johnson and Johnson
Argus Health
Fuji
US Army
Deloitte
Covington

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 verifification 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.

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