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Dietary supplement

Saccharomyces boulardii Ingredients & Drug Interactions

by NutriCology Restore-Biotic

Saccharomyces boulardii label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Saccharomyces boulardii against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Minor

Saccharomyces boulardii is a dietary supplement by NutriCology Restore-Biotic with 1 active ingredient. Its ingredients are commonly taken for acute diarrhea, antibiotic-associated diarrhea, traveler's diarrhea.Based on those ingredients, 40 medications have a known interaction with it, the most serious rated minor. The ingredients most likely to interact are Saccharomyces boulardii strain DBVPG 6763. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Saccharomyces boulardii by NutriCology Restore-Biotic

Ask about any prescription or over-the-counter medication and we check it for interactions with Saccharomyces boulardii by NutriCology Restore-Biotic — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Saccharomyces boulardii by NutriCology Restore-Biotic

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 10, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: Saccharomyces boulardii strain DBVPG 6763, a live yeast used as a probiotic. It's a capsule formula, and the inactive ingredients are standard excipients—hydroxypropyl methylcellulose, microcrystalline cellulose, silicon dioxide, and stearic acid—that hold the capsule together and help with stability.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: friendly probiotic yeast for gut health.
  • We looked for evidence on: Antibiotic-associated diarrhea, Clostridioides difficile infection, Travelers' diarrhea, Rotaviral diarrhea, Irritable bowel syndrome (IBS), Crohn disease — and 3 related terms.
  • The strongest evidence on file: Saccharomyces Boulardii is rated "Possibly Effective" for Antibiotic-associated diarrhea (Natural Medicines).
  • Also on file: Saccharomyces Boulardii is rated "Possibly Effective" for Rotaviral diarrhea, Travelers' diarrhea, Clostridioides difficile infection.
  • Also on file: Saccharomyces Boulardii is rated "Insufficient Reliable Evidence To Rate" for Crohn disease, Ulcerative colitis, Irritable bowel syndrome (IBS).

Saccharomyces boulardii is rated possibly effective for several types of diarrhea: rotaviral diarrhea, travelers' diarrhea, and diarrhea that follows antibiotic use. It's also possibly effective for necrotizing enterocolitis (NEC), Clostridioides difficile infection, and Helicobacter pylori.

These ratings mean the evidence suggests it may help, but larger or higher-quality trials are needed to be sure. Talk with your doctor about whether it's right for what you're dealing with.

The evidence, ingredient by ingredient Saccharomyces Boulardii

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Saccharomyces boulardii is generally well tolerated in healthy adults, but it should be avoided if you're critically ill or have a weakened immune system (immunocompromised). In rare cases—especially in critically ill patients with central lines or on broad-spectrum antibiotics—the yeast itself has entered the bloodstream (fungemia).

Uncommon side effects include stomach cramps, gas, nausea, vomiting, and loss of appetite. The safety data isn't complete, so talk with your doctor before you start, especially if you're in the hospital, have any immune concerns, or take multiple antibiotics.

Side effects, ingredient by ingredient Saccharomyces Boulardii

Meds to double-check

Minor interactions only
Known Interaction Concern · database check
Minor only

Only Minor-severity interactions are documented for these ingredients.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Saccharomyces Boulardii.
  • The most serious interaction on file is rated Minor.
  • For scale: 40 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take antifungal medications (Minor severity), tell your doctor or pharmacist before starting this product so they can help you time them right. Additionally, because safety data is limited and there's a rare risk of serious infection in critically ill or immunocompromised patients, clear this product with your doctor or pharmacist if you're hospitalized, have a central line, or take broad-spectrum antibiotics.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Only minor medication interactions are documented, and safety information is well characterized.

This probiotic may help with certain types of diarrhea if you're otherwise healthy. Avoid it if you're critically ill or immunocompromised—or if so, only use it under medical supervision.

If you take antifungals, coordinate the timing with your doctor or pharmacist so the antifungal doesn't interfere with the probiotic's effectiveness. Check with your healthcare provider before starting, especially if you're hospitalized or have any immune condition.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jan 22, 2022.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Saccharomyces boulardii, straight from the product label.

Brand NutriCology Restore-Biotic
Barcode (UPC) 713947572300
Net contents 120 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Jan 22, 2022
DSLD ID 258714
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Saccharomyces boulardii by NutriCology Restore-Biotic, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Capsule(s)
Maximum serving Sizes:
3 Capsule(s)
Servings per container
40
UPC/BARCODE
713947572300
IngredientAmount% DV
Saccharomyces boulardii strain DBVPG 6763450 mg--

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Silicon Dioxide, Stearic Acid

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formula

A probiotic, non-colonizing yeast species closely related to Brewer's yeast and not related to the yeast group to which Candida belongs. Saccharomyces boulardii is a transitory microorganism and is eliminated after supplementation is stopped.

Friendly Probiotic Yeast

3 Billion CFUs per capsule

Formulation

Non-dairy and gluten-free.

Variations in product color may occur.

Suggested/Recommended/Usage/Directions

Suggested Use As a dietary supplement, 1 to 3 capsules three times daily, preferably on an empty stomach, or as directed by a healthcare practitioner.

Storage

Keep in a cool, dry place, tightly capped.

Stable at room temperature

Brand IP Statement(s)

NutriCology Innovative Nutrition

BiOOtic S. boulardii The probiotic yeast for health BiOOtic is a trademark of Gnosis.

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Saccharomyces boulardii by NutriCology Restore-Biotic label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Saccharomyces boulardii label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Saccharomyces boulardii by NutriCology Restore-Biotic

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Capsule(s) Dosage formCapsule Servings per container40 Amounts shown are per serving.

Saccharomyces boulardii strain DBVPG 6763

Interacts with
40 drugs
450 mg per serving

Saccharomyces boulardii is a beneficial yeast used as a probiotic, with the strongest evidence for preventing and treating certain types of diarrhea,...

Saccharomyces boulardii strain DBVPG 6763 monograph & interactions

Other (inactive) ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Silicon Dioxide, Stearic Acid. These complete the product’s ingredient list but are not active constituents.

Interaction report

Saccharomyces boulardii by NutriCology Restore-Biotic Drug Interactions

Want to check YOUR meds against Saccharomyces boulardii?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
40Drugs
40 Minor

Ingredients driving the most interactions

Saccharomyces boulardii strain DBVPG 6763 40

Individual Drug Interactions

The ingredients in Saccharomyces boulardii interact with 40 drugs. Click any drug to see the details.

1 of the 1 ingredient in Saccharomyces boulardii interact with drugs. Each result below shows which ingredient is responsible. Saccharomyces boulardii strain DBVPG 6763

Each ingredient & the kinds of drugs it affects

For each ingredient in Saccharomyces boulardii with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Saccharomyces boulardii strain DBVPG 67631 drug type · 40 drugs

Antifungals

Theoretically, taking antifungals with Saccharomyces boulardii might decrease the effectiveness of Saccharomyces boulardii.
S. boulardii is a live yeast. Therefore, simultaneously taking antifungals might kill a significant number of the organisms.

Likelihood Possible Evidence D
Saccharomyces boulardii strain DBVPG 6763 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Saccharomyces boulardii, from the product label.

NutriCology Restore-Biotic

See all NutriCology Restore-Biotic products
Name
NutriCology
City
South Salt Lake
State
UT
ZipCode
84115
Phone Number
800.545.9960
Web Address
www.nutricology.com
Pharmacist Counseling Corner

Saccharomyces boulardii by NutriCology Restore-Biotic: Common Questions

Does Saccharomyces boulardii by NutriCology Restore-Biotic interact with any medications?
Yes. Based on its ingredients, Saccharomyces boulardii has a known interaction with 40 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Saccharomyces boulardii contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Will this probiotic help with my diarrhea?
Saccharomyces boulardii is possibly effective for several causes of diarrhea—including rotaviral, travelers', antibiotic-related, and Clostridioides difficile infection. It may help, but the evidence isn't definitive yet. Your doctor can tell you whether it's worth trying for your specific situation.
Can I take this if I'm on an antifungal?
You can, but timing matters. Since S. boulardii is a live yeast, antifungals may kill some of it and reduce how well it works. Talk with your doctor or pharmacist—they can help you space out the doses so the antifungal doesn't interfere with the probiotic.
What are the side effects?
Most people tolerate it well. Rarely, it can cause stomach cramps, gas, nausea, vomiting, or a loss of appetite. In very rare cases—mainly in critically ill hospital patients—the yeast has entered the bloodstream, so it's not recommended if you're hospitalized or have a weakened immune system.
Is this safe if I'm pregnant or breastfeeding?
We don't have enough reliable safety data for pregnancy or breastfeeding. Talk with your doctor or pharmacist before taking it if you're pregnant or nursing—they can advise you on whether it's right for your situation.
Should I avoid this if I'm on antibiotics?
Not necessarily, but it depends on which antibiotic and your overall health. If you're in the hospital on broad-spectrum antibiotics, this product carries a small risk and should only be used with medical approval. For outpatient antibiotic use, ask your doctor or pharmacist about timing it with the probiotic.
Does this product have any fillers?
The capsule itself contains inactive ingredients—hydroxypropyl methylcellulose, microcrystalline cellulose, silicon dioxide, and stearic acid—which are standard binders and stabilizers. The active ingredient is the live yeast.

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

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Saccharomyces boulardii label
Go deeper

The Full Monographs Behind Saccharomyces boulardii’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Saccharomyces Boulardii

Interacts with 40 drugs

Saccharomyces boulardii is a beneficial yeast used as a probiotic, with the strongest evidence for preventing and treating certain types of diarrhea, including antibiotic-associated diarrhea...

Read the full Saccharomyces Boulardii monograph →
Sources

Sources & How We Checked

Saccharomyces boulardii's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 26 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Saccharomyces Boulardii 26 references
  1. Niault M, Thomas F, Prost J, et al. Fungemia due to Saccharomyces species in a patient treated with enteral Saccharomyces boulardii. Clin Infect Dis 1999;28:930.
  2. Pletinex M, Legein J, Vandenplas Y. Fungemia with Saccharomyces boulardii in a 1-year-old girl with protracted diarrhea. J Pediatr Gastroenterol Nutr 1995;21:113-5. DOI
  3. Fredenucci I, Chomarat M, Boucaud C, et al. Saccharomyces boulardii fungemia in a patient receiving ultra-levure therapy. Clin Infect Dis 1998;27:222-3.
  4. Elmer GW, McFarland LV, Surawicz CM, et al. Behaviour of Saccharomyces boulardii in recurrent Clostridium difficile disease patients. Aliment Pharmacol Ther 1999;13:1663-8.
  5. Lewis SJ, Freedman AR. Review article: the use of biotherapeutic agents in the prevention and treatment of gastrointestinal disease. Aliment Pharmacol Ther 1998;12:807-22. PubMed
  6. Cesaro S, Chinello P, Rossi L, Zanesco L. Saccharomyces cerevisiae fungemia in a neutropenic patient treated with Saccharomyces boulardii. Support Care Cancer 2000;8:504-5. PubMed
  7. Hennequin C, Thierry A, Richard GF, et al. Microsatellite typing as a new tool for identification of Saccharomyces cerevisiae strains. J Clin Microbiol 2001;39:551-9.
  8. Plein K, Hotz J. Therapeutic effects of Saccharomyces boulardii on mild residual symptoms in a stable phase of Crohn's disease with special respect to chronic diarrhea - a pilot study. Z Gastroenterol 1993;31:129-34.
  9. Borriello SP, Hammes WP, Holzapfel W, et al. Safety of probiotics that contain lactobacilli or bifidobacteria. Clin Infect Dis 2003;36:775-80. PubMed
  10. Marteau P, Seksik P. Tolerance of probiotics and prebiotics. J Clin Gastroenterol 2004;38:S67-9. PubMed
  11. Munoz P, Bouza E, Cuenca-Estrella M, et al. Saccharomyces cerevisiae fungemia: an emerging infectious disease. Clin Infect Dis 2005;40:1625-34. PubMed
  12. Lherm, T., Monet, C., Nougiere, B., Soulier, M., Larbi, D., Le Gall, C., Caen, D., and Malbrunot, C. Seven cases of fungemia with Saccharomyces boulardii in critically ill patients. Intensive Care Med 2002;28(6):797-801. PubMed
  13. Riquelme, A. J., Calvo, M. A., Guzman, A. M., Depix, M. S., Garcia, P., Perez, C., Arrese, M., and Labarca, J. A. Saccharomyces cerevisiae fungemia after Saccharomyces boulardii treatment in immunocompromised patients. J Clin.Gastroenterol. 2003;36(1):41- PubMed
  14. Cherifi, S., Robberecht, J., and Miendje, Y. Saccharomyces cerevisiae fungemia in an elderly patient with Clostridium difficile colitis. Acta Clin Belg. 2004;59(4):223-224. PubMed
  15. Ellouze O, Berthoud V, Mervant M, Parthiot JP, Girard C. Septic shock due to Sacccaromyces boulardii. Med Mal Infect. 2016;46(2):104-105.
  16. Appel-da-Silva MC, Narvaez GA, Perez LRR, Drehmer L, Lewgoy J. Saccharomyces cerevisiae var. boulardii fungemia following probiotic treatment. Med Mycol Case Rep. 2017;18:15-7. PubMed
  17. Atici S, Soysal A, Karadeniz Cerit K, et al. Catheter-related Saccharomyces cerevisiae Fungemia Following Saccharomyces boulardii Probiotic Treatment: In a child in intensive care unit and review of the literature. Med Mycol Case Rep. 2017;15:33-35. PubMed
  18. Martin IW, Tonner R, Trivedi J, et al. Saccharomyces boulardii probiotic-associated fungemia: questioning the safety of this preventive probiotic's use. Diagn Microbiol Infect Dis. 2017;87(3):286-8. PubMed
  19. Romanio MR, Coraine LA, Maielo VP, Abramczyc ML, Souza RL, Oliveira NF. Saccharomyces cerevisiae fungemia in a pediatric patient after treatment with probiotics. Rev Paul Pediatr 2017;35(3):361-4.
  20. Roy U, Jessani LG, Rudramurthy SM, et al. Seven cases of Saccharomyces fungaemia related to use of probiotics. Mycoses 2017;60(6):375-380.
  21. Romanio MR, Coraine LA, Maielo VP, Abramczyc ML, Souza RL, Oliveira NF. Saccharomyces cerevisiae fungemia in a pediatric patient after treatment with probiotics. Rev Paul Pediatr. 2017 Jul-Sep;35(3):361-364. doi: 10.1590/1984-0462/;2017;35;3;00014.
  22. Flatley EA, Wilde AM, Nailor MD. Saccharomyces boulardii for the prevention of hospital onset Clostridium difficile infection. J Gastrointestin Liver Dis. 2015;24(1):21-4. PubMed
  23. Ventoulis I, Sarmourli T, Amoiridou P, et al. Bloodstream infection by Saccharomyces cerevisiae in two COVID-19 patients after receiving supplementation of Saccharomyces in the ICU. J Fungi (Basel). 2020;6(3):98. PubMed
  24. Wombwell E, Bransteitter B, Gillen LR. Incidence of Saccharomyces cerevisiae fungemia in hospitalised patients administered Saccharomyces boulardii probiotic. Mycoses 2021;64(12):1521-1526.
  25. Rannikko J, Holmberg V, Karppelin M, et al. Fungemia and Other Fungal Infections Associated with Use of Saccharomyces boulardii Probiotic Supplements. Emerg Infect Dis 2021;27(8):2090-6.
  26. Awoyemi A, Mayerhofer C, Felix AS, et al. Rifaximin or Saccharomyces boulardii in heart failure with reduced ejection fraction: Results from the randomized GutHeart trial. EBioMedicine 2021;70:103511. PubMed

See these in context on the Saccharomyces Boulardii monograph →

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

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