When did xifaxan come out?

When did Xifaxan (rifaximin) first launch?

Xifaxan (rifaximin) was approved and came out in the U.S. in 2004 for treating traveler’s diarrhea caused by noninvasive strains of E. coli. [1]

Did it launch for other uses later?

Yes. After the original approval in 2004, Xifaxan later gained additional FDA-approved indications (for example, for hepatic encephalopathy), but the first U.S. launch for any Xifaxan use was in 2004. [1]

What’s the key date to remember?

If you’re asking about the brand’s start date (its initial market entry in the U.S.), the answer is 2004. [1]

Sources:
[1] https://www.drugpatentwatch.com/