rifaximin
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Manufactured by various FDA-approved generic manufacturers.
*You can pay as little as $0 per fill using Drug Coupons or Patient Assistance Programs. Subject to applicability & eligibility requirements.
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rifaximin Uses, Side Effects, Interactions, Warnings & Dosing
What dosages is rifaximin available in?
rifaximin is available as a 200 mg and 550 mg oral tablet.
What is rifaximin used for?
rifaximin is a rifamycin antibiotic and is used for the following:
- Treatment of travelers’ diarrhea caused by E. coli in people ages 12 years and older
- Treatment of irritable bowel syndrome with diarrhea (IBS-D) in adults
- Prevention of hepatic encephalopathy (HE) in adults
How does rifaximin work?
rifaximin is a rifamycin antibiotic. It works by stopping bacteria from making important proteins that the bacteria need to survive. As a result, the bacteria can’t grow or spread.
How do I take rifaximin?
rifaximin is dosed as follows:
- Travelers’ diarrhea: The typical dose is 200 mg by mouth three times daily for 3 days
- Hepatic encephalopathy: The typical dose is 550 mg by mouth twice daily
- Irritable bowel syndrome with diarrhea (IBS-D): The typical dose is 550 mg by mouth three times daily for 2 weeks. If your symptoms come back after treatment, your prescriber might decide to take the medication again using the same treatment course. Your can repeat the treatment course for up to 2 times
Is it safe for me to take rifaximin?
rifaximin is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you have a hypersensitivity to rifaximin, rifamycin antimicrobial agents, or any of the components of rifaximin.
rifaximin Common Side Effects
Common side effects of rifaximin:
- Swelling in hands and feet
- Nausea
- Dizziness
- Tiredness
- Extra stomach fluid and swelling
- Headache
rifaximin Serious Side Effects
Serious side effects are rare with rifaximin. Contact your healthcare provider immediately if you experience any of the following.
- C. difficile-related diarrhea: rapid heart rate, foul-smelling diarrhea, fever, nausea, frequent bowel movements (even up to 15 times per day)
- Severe allergic reaction: rash; trouble breathing; swelling of the face, lips, tongue, or throat
Effects of other drugs, drug classes and over-the-counter products on rifaximin
The following medications may interact with rifaximin:
- Warfarin: Monitor INR and prothrombin time; dose adjustment of warfarin may be needed to maintain target INR range
Who makes rifaximin?
Various FDA-approved generic manufacturers
Is rifaximin safe in pregnancy?
rifaximin may harm your unborn baby. Tell your
healthcare provider if you are pregnant or think you are pregnant.
What to do if you missed your rifaximin dose
The FDA's medical product safety reporting program for health professionals, patients and consumers.
Learn more about reporting side effectsDrug Savings Tips
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Medical Disclaimer
NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
Things to know
What is rifaximin good for?
What to avoid when taking rifaximin?
How does Xifaxan make you feel?
Should I take probiotics with rifaximin?
Does rifaximin damage the liver?
How does rifaximin make you feel?
Does Xifaxan cause weight gain?
Is rifaximin good for IBS?
What bacteria does rifaximin cover?
Will rifaximin get rid of SIBO?
Is rifaximin an anti-inflammatory?
Is rifaximin a strong antibiotic?
Is rifaximin toxic to the liver?
How long can you be on rifaximin?
What is the success rate of rifaximin?
Does rifaximin affect normal gut flora?
What is rifaximin drug of choice for?
Why does Xifaxan cause weight gain?
Is there a cheaper alternative to Xifaxan?
Does rifaximin get rid of SIBO?
What drug class is rifaximin?
What foods to avoid while taking rifaximin?
Why is Xifaxan so expensive?
Is ciprofloxacin the same as rifaximin?
Is Xifaxan bad for your liver?
What is the difference between Xifaxan and rifaximin?
What bacteria does Xifaxan treat?
What does rifaximin do for IBS?
Is metronidazole the same as rifaximin?
Who should not take rifaximin?
What does Xifaxan do for the liver?
Does rifaximin work for SIBO?
How long do you take rifaximin for SIBO?
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