Interaction Details

There were no interactions found between Rifaximin and Docosahexaenoic Acid (dha). This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.


Still looking for more information about combining Rifaximin and Docosahexaenoic Acid (dha)? Ask Dr. Brian Staiger about it by contacting him directly.

Docosahexaenoic Acid (dha) Overview

Docosahexaenoic Acid (dha) DHA (docosahexaenoic acid) is an omega-3 fatty acid that is important for the proper functioning of the nervous system and eyes. DHA can be found in a variety of foods and in abundance in many different types of fatty fish, such as salmon and mackerel. It is a popular dietary supplement, consistently among the most utilized. There is some evidence to suggest that DHA may have a number of potential health benefits, including improving cognitive function and reducing the risk of age-related cognitive decline. It has also been shown to be important for fetal and infant brain development and is a common component in prenatal vitamins. DHA is often combined with EPA (eicosapentaenoic acid) in dietary supplements and both are found together in most fish-sourced ones. One main difference between DHA and EPA is their structure. DHA is a long-chain fatty acid, while EPA is a medium-chain fatty acid. This difference in structure may affect how they are utilized in the body and their potential health benefits. For example, DHA is more highly concentrated in the brain and is believed to be important for brain and eye health, while EPA is more highly concentrated in the heart and may be helpful in reducing inflammation and improving cardiovascular health.
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Rifaximin Overview

  • Rifaximin 200-mg tablets are used to treat traveler's diarrhea caused by certain bacteria in adults and children at least 12 years of age. Rifaximin 550-mg tablets are used to prevent episodes of hepatic encephalopathy (changes in thinking, behavior, and personality caused by a build-up of toxins in the brain in people who have liver disease) in adults who have liver disease and to treat irritable bowel syndrome (with diarrhea) in adults. Rifaximin is in a class of medications called antibiotics. Rifaximin treats traveler's diarrhea and irritable bowel syndrome by stopping the growth of the bacteria that cause diarrhea. Rifaximin treats hepatic encephalopathy by stopping the growth of bacteria that produce toxins and that may worsen liver disease. Rifaximin will not work to treat traveler's diarrhea that is bloody or occurs with fever.

  • Antibiotics such as rifaximin will not work for colds, flu, or other viral infections. Taking antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.

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Docosahexaenoic Acid (dha) - More Interactions

Docosahexaenoic Acid (dha) interacts with 367 drugs

Interaction Rating Key

These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.

Major The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur.
Moderate Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur.
Minor Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction.
Unknown No interactions have been reported or no interaction data is currently available.

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Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

Drug descriptions are provided by MedlinePlus.

Ask A Pharmacist About Your Herbal Questions!

Dr. Brian Staiger, PharmD

In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!

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