Xifaxan (Rifaximin) - Tabs

Rifaximin 200-mg tablets are used to treat traveler's diarrhea caused by certain bacteria in adults and children at least 12 years of age. Rifaximin 550-mg tablets are used to prevent episodes of hepatic encephalopathy (changes in thinking, behavior, and personality caused by a build-up of toxins in the brain in people who have liver disease) in people at least 18 years of age who have liver disease. Rifaximin is in a class of medications called antibiotics. Rifaximin treats traveler's diarrhea by stopping the growth of the bacteria that cause diarrhea. Rifaximin treats hepatic encephalopathy by stopping the growth of bacteria that produce toxins and that may worsen liver disease. Rifaximin will not work to treat diarrhea that is bloody or occurs with a fever.