This medication is used to treat diarrhea caused by the common bacteria known as E. coli (“traveler’s diarrhea”). Rifaximin should not be used if you have a fever or bloody diarrhea. It works by stopping the growth of bacteria.This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.Rifaximin is also used to treat irritable bowel syndrome with diarrhea. It is also used to prevent a brain problem caused by liver disease (hepatic encephalopathy). It may help you think more clearly.
How to use Rifaximin Tablet
Read the Patient Information Leaflet if available from your pharmacist before you start taking rifaximin and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
The dosage is based on your medical condition and response to treatment.
To treat traveler’s diarrhea, take this medication by mouth with or without food as directed by your doctor, usually 3 times a day (every 8 hours) for 3 days.
To treat irritable bowel syndrome with diarrhea, take this medication by mouth with or without food as directed by your doctor, usually 3 times a day for 14 days.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Tell your doctor right away if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool.
Do not use anti-diarrhea or opioid medications if you have any of these symptoms because these products may make them worse.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.