How is it used?

Before taking

While taking

Rifaximin is used to treat traveler's diarrhea caused by certain bacteria. Rifaximin is in a class of medications called antibiotics. It works by preventing the bacteria from growing inside the intestine (gut). Rifaximin will not work to treat bloody diarrhea or diarrhea with fever.

Rifaximin comes as a tablet to take by mouth. It is usually taken with or without food three times a day for 3 days. To help you remember to take rifaximin, take it around the same times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take rifaximin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

Your symptoms should improve within 24 to 48 hours after you start taking rifaximin. If your symptoms do not go away or they get worse, or you develop a fever or bloody diarrhea, call your doctor.

Take rifaximin until you finish the prescription, even if you feel better. If you stop taking rifaximin too soon your infection may not be completely cured and bacteria may become resistant to antibiotics.

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

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