Drug & supplement interaction

Tartaric Acid + Rifaximin

Rifaximin brand name: Xifaxan.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Tartaric Acid and Rifaximin in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

Know someone taking this? Share
Facebook Post Reddit Email
On this page
Interaction report

Tartaric Acid and Rifaximin

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Rifaximin and Tartaric Acid in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Tartaric Acid at all — not against Rifaximin, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Tartaric Acid safety at a glance

Tartaric Acid overall Use caution Generally safe in normal food amounts, but large doses can irritate the digestive tract.
Pregnancy Likely Safe When tartaric acid is used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of tartaric acid... Read the full pregnancy detail
Breastfeeding Likely Safe When tartaric acid is used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of tartaric acid... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Rifaximin and Tartaric Acid? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Rifaximin’s Own FDA Label Lists

This is not an interaction — none of it involves Tartaric Acid. These are the most notable effects listed in the ADVERSE REACTIONS section of Rifaximin’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Severe muscle breakdown Worth acting on
  • Trouble swallowing Worth acting on
  • A severe skin reaction Worth acting on
  • Low mood Worth acting on
  • Kidney problems Worth acting on
  • Anemia Worth acting on
  • Shortness of breath Worth acting on
  • A severe allergic reaction Worth acting on
  • Hives Worth acting on
  • A higher chance of infection Worth acting on

Showing the 10 most notable of 30 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Rifaximin. Read the label on DailyMed › Where a percentage is shown, it is the share of 20,331 voluntary FDA FAERS reports for Rifaximin that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Tartaric Acid’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Tartaric Acid side to compare — that is a limit of the record, not a statement that Tartaric Acid has no side effects.

Special populations

Tartaric Acid in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When tartaric acid is used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of tartaric acid when used as a supplement during pregnancy or lactation; avoid amounts greater than those found in foods.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Tartaric Acid or Rifaximin

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Tartaric Acid or Rifaximin, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Rifaximin

This page covers Tartaric Acid only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Rifaximin page lists 44 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Bacillus Coagulans (moderate), Bacillus Subtilis (moderate), Bifidobacterium Animalis Subsp. Lactis (moderate) and Bifidobacterium Bifidum (moderate).

By severity: 1 major · 33 moderate · 10 minor.

From our pharmacist’s overview on the Rifaximin page

“Activated charcoal is the one entry here I would treat as a hard stop while taking rifaximin (Xifaxan). Charcoal binds drugs in the gut and can cut how much gets absorbed, and it carries the only major rating among the 44 supplements on this page.”

Reviewed by 2 · Jul 18, 2026

Open the Rifaximin interaction page

One more smart check

Taking Tartaric Acid as Part of a Dietary Supplement Product? Check It for Interactions

We hold 27 real supplement products containing Tartaric Acid, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Tartaric Acid. Even though Tartaric Acid itself has no known interaction with Rifaximin, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Tartaric Acid and Rifaximin Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Tartaric Acid
Steady interest

#1,172 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Rifaximin
Top half

#1,081 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions. Tartaric Acid is not yet covered by that licensed database, so its write-up cites publicly available medical sources directly (see the references below).
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Tartaric Acid reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Tartaric Acid and Rifaximin records this page draws on were last updated June 22, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Tartaric Acid

What is Tartaric Acid?

  • Food and drink flavoring (sour taste)
  • Antioxidant and preservative in foods
  • Effervescent and antacid products
  • Baking (as cream of tartar)
  • Cosmetic and skincare ingredient

Tartaric acid is a natural fruit acid found in grapes and used widely as a food additive for its tart flavor and as a component in baking and effervescent products. It is generally recognized as safe in the small amounts found in foods, but it is not a proven treatment for any health condition, and large amounts can upset the stomach. If you are considering supplements containing it, check with your pharmacist or doctor first.

Naturally found in grapes and other fruits; also made commercially · Powder, food additive, capsules, effervescent products, cream of tartar

An interaction check asks whether these two react with each other — it does not ask whether Tartaric Acid is a good idea for someone in your situation. Here is what our Tartaric Acid record says about it on its own.

Tartaric Acid: dosing

There is no established medicinal dose for tartaric acid, because it is not a proven treatment for any condition. Most people get it naturally as a small ingredient in foods, baked goods, and beverages.If you use a product that contains tartaric acid — such as an effervescent powder or a supplement — follow the directions on the label and do not exceed the recommended amount.

From our Tartaric Acid monograph — the full record covers uses, side effects and every documented interaction.

Read the full Tartaric Acid monograph & all interactions
Medication

About Rifaximin

What Is Rifaximin Used For?

Brand name: Xifaxan

Xifaxan (rifaximin) tablets treat three distinct conditions. For travelers' diarrhea caused by Escherichia coli, it is approved for adults and children 12 and older. For irritable bowel syndrome with diarrhea (IBS-D), it is approved for adults. It is also used in adults to reduce the chance that hepatic encephalopathy (confusion and other brain symptoms caused by liver disease) will come back.

Important limits apply: Xifaxan should not be used for travelers' diarrhea that comes with fever, blood in the stool, or when a pathogen other than E. coli is suspected. It is also not suitable for bacterial infections outside the gut, because very little of the drug is absorbed into the bloodstream.

See full Rifaximin drug information
Keep checking

Other Drugs & Tartaric Acid

Browse every other medication we’ve checked against Tartaric Acid — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Tartaric Acid against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Tartaric Acid list.

See the full Tartaric Acid interactions page
See every supplement checked against Rifaximin, ranked by severity
Evidence & sources

Tartaric Acid References

The 3 sources that drive our Tartaric Acid monograph — publicly available pages from reputable medical and government organizations. Every link was verified to work before publishing. Tartaric Acid is not covered by the licensed Natural Medicines interaction database, so its page cites these public sources directly.

  1. Tartaric acid — PubChem (National Library of Medicine) Source
  2. Food Additive Status List — U.S. Food and Drug Administration Source
  3. Generally Recognized as Safe (GRAS) — U.S. Food and Drug Administration Source

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Tartaric Acid and Rifaximin Together: Common Questions

Is it safe to take Tartaric Acid with Rifaximin?
We do not list a known interaction between Tartaric Acid and Rifaximin. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Rifaximin interact with any supplements?
Yes. Rifaximin has documented interactions with 44 supplements in our database — Tartaric Acid is not one of them. The Rifaximin interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Tartaric Acid monograph Uses, safety profile, and every drug interaction in one place Rifaximin drug information The full plain-English guide to this medication Rifaximin supplement interactions Every supplement checked against Rifaximin, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Rifaximin and Tartaric Acid?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.