Refaxinol 400mg Tablet is an antibiotic used to treat hepatic encephalopathy and infectious diarrhea by killing harmful bacteria in the intestines. It can be taken alone or in combination with other medicines and should be taken at the same time each day. Side effects like vomiting, headache, dizziness, nausea, rashes, joint pain, and depression are temporary and go away during treatment. Before starting treatment, inform your doctor if you are pregnant, breastfeeding, have liver, kidney, or heart problems, or are allergic to any medicine.