Rifaximin

RIFAXIMIN

Rifaximin is a rifampin derivative that is not absorbed from the gastrointestinal tract. It is approved for oral administration in the prevention of hepatic encephalopathy and for the treatment of travelers’ diarrhea caused by noninvasive strains of Escherichia coli in patients 12 years of age and older. It has also been used off label for irritable bowel syndrome and for Clostridium difficile colitis not responsive to other drugs.