Irritable Bowel Syndrome with Diarrhea (IBS-D): To reduce bloating and urgency. Hepatic Encephalopathy: To prevent brain dysfunction in patients with liver failure by reducing ammonia-producing bacteria. Traveler?s Diarrhea: Caused by non-invasive strains of E. coli. SIBO (Small Intestinal Bacterial Overgrowth): To clear excess bacteria from the small intestine.
It binds to the bacterial enzyme DNA-dependent RNA polymerase, which prevents the bacteria from making proteins and multiplying. Because less than 1% of the drug is absorbed into the blood, it exerts its full force directly on the bacteria living in the intestines without causing many systemic side effects.
Common: Flatulence (gas), abdominal pain, urgency to empty bowels, and nausea. Occasional: Headache, dizziness, or peripheral edema (swelling of hands/feet). Serious (Rare): C. difficile-associated diarrhea (severe persistent diarrhea).
No. Rifaximin is not absorbed into the blood, so it cannot reach the bladder or throat. It only works on infections within the gastrointestinal tract.
The risk is much lower because it stays in the gut and doesn't affect the bacteria in other parts of the body, though it is not impossible.
Yes, Rifaximin can be taken with or without food.
In liver failure, the liver can't clear ammonia. Rifaximin kills the bacteria in the gut that produce ammonia, preventing it from reaching the brain.
For Traveler's Diarrhea, it is usually 3 days; for IBS-D, it is typically 14 days; for liver disease, it may be taken long-term.
No. You should complete the full course prescribed by your doctor to prevent the bacteria from becoming resistant to the antibiotic.
No, unlike some other antibiotics, Rifaximin is not known to cause photosensitivity.
It is generally approved for children 12 years and older for Traveler's Diarrhea, but use in younger children must be strictly directed by a pediatrician.
Stop the medication and contact your doctor immediately, as this could be a sign of a more serious infection or a different type of bacteria.
There is no direct interaction, but alcohol can irritate the gut and worsen symptoms of IBS or liver disease, so it is best to avoid it.
