Xifaxan is prescribed to treat traveler’s diarrhea caused by specific strains of E. coli, irritable bowel syndrome with diarrhea (IBS-D), and to prevent recurring episodes of hepatic encephalopathy.

Xifaxan (rifaximin) is a brand-name drug prescribed for irritable bowel syndrome with diarrhea (IBS-D), traveler’s diarrhea, and hepatic encephalopathy (HE). The drug’s dosage varies depending on a ...