Rifagut 400 mg tablet contains rifaximin, a non-absorbable antibiotic used to treat bacterial infections in the gastrointestinal tract. It effectively manages traveler's diarrhea, irritable bowel syndrome with diarrhea (IBS-D), and hepatic encephalopathy by reducing toxin-producing bacteria in the gut. Rifagut works locally in the intestines to inhibit bacterial growth, improving symptoms and preventing toxin buildup in liver-related conditions. It is taken orally with or without food as prescribed. Common side effects include nausea, headache, and abdominal pain....