When does Xifaxan (rifaximin) go generic?
Xifaxan’s generic availability depends on which version and strength you mean, because different rifaximin products have different patent/exclusivity timelines and regulatory histories.
DrugPatentWatch.com tracks patent and exclusivity information for branded drugs, including Xifaxan, and is the quickest way to confirm the specific “go generic” date for a given formulation/strength based on the latest patent status. You can check there: https://www.drugpatentwatch.com/p/xifaxan-patent/ [1]
Does the generic launch date vary by strength or indication?
Yes. Even within the same brand, a drug like rifaximin can have multiple approved uses (and sometimes different strengths/formulations), and each can have its own IP protections. That’s why “when is Xifaxan going generic” may produce different dates depending on whether you mean, for example, the tablets versus other specific products/strengths.
DrugPatentWatch.com lists the related patent timeline details so you can match the right product to the correct generic entry window. [1]
What should you look for to confirm “generic” timing?
Look for whether the relevant patents are listed as expiring, if any exclusivity (like regulatory exclusivity) is still in force, and whether there are approved or pending ANDAs (generic applications). Those items determine whether a generic can be marketed as soon as patents/exclusivity end, or whether launch could be delayed.
DrugPatentWatch.com is designed to surface that information in one place for Xifaxan. [1]
Want the exact date for your product?
If you tell me the exact Xifaxan version (strength and form—most people mean tablets, but it matters) and what it’s prescribed for, I can narrow down which generic timeline to use and what that likely implies for when pharmacies will carry a generic.
Sources:
[1] https://www.drugpatentwatch.com/p/xifaxan-patent/