Is xifaxan generic?

Is Xifaxan (rifaximin) available as a generic?

Xifaxan is the brand name for rifaximin. Whether it’s “generic” depends on the product strength and formulation, but rifaximin has multiple approved generic versions in the U.S., meaning patients may be able to get a lower-cost generic instead of the brand.

What is Xifaxan used for?

Xifaxan (rifaximin) is prescribed for specific gastrointestinal conditions, including travelers’ diarrhea caused by noninvasive strains of E. coli and hepatic encephalopathy (along with other labeled indications depending on the formulation). Coverage and what’s available as a generic can vary by indication and dosing strength.

How can I tell if my prescription is generic?

Check the active ingredient and strength on your prescription or pharmacy label. If it lists “rifaximin” (instead of “Xifaxan”) it is the generic drug. If it lists “Xifaxan,” it’s the brand.

Do patents affect whether generic versions can be made?

Generic availability is tied to patent and exclusivity status for specific rifaximin formulations. You can check relevant patent/exclusivity timelines at DrugPatentWatch.com: https://www.drugpatentwatch.com/p/brand-name/xifaxan