Ultimate Probiotic 8 Billion CFU Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Ultimate Probiotic 8 Billion CFU 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
Ultimate Probiotic 8 Billion CFU is a dietary supplement by Silver Fern Brand with 5 active ingredients. Its ingredients are commonly taken for acute diarrhea, antibiotic-associated diarrhea, traveler's diarrhea.Based on those ingredients, 222 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bacillus coagulans SC-208, Bacillus subtilis HU-58, Saccharomyces boulardii. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Ultimate Probiotic 8 Billion CFU by Silver Fern Brand
Ask about any prescription or over-the-counter medication and we check it for interactions with Ultimate Probiotic 8 Billion CFU by Silver Fern Brand — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of Ultimate Probiotic 8 Billion CFU by Silver Fern Brand
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.
What’s inside
Low disclosure
This product contains 5 active ingredients: a proprietary probiotic blend (which lists its individual strains separately), Saccharomyces boulardii, Bacillus clausii SC-109, Pediococcus acidilactici, and Bacillus coagulans SC-208. These are all live microorganisms — often called probiotics — that support digestive and gut health.
The capsule itself contains cellulose as an inactive ingredient.
Does it work?
Moderate evidence
The evidence varies by strain. Saccharomyces boulardii is possibly effective for rotaviral diarrhea, traveler's diarrhea, antibiotic-associated diarrhea, necrotizing enterocolitis (a serious intestinal inflammation in preterm infants), Clostridioides difficile infection, and Helicobacter pylori.
Bacillus coagulans is possibly effective for constipation and irritable bowel syndrome, but evidence is insufficient for antibiotic-associated diarrhea, athletic performance, cancer, and nonalcoholic fatty liver disease. Bacillus subtilis is possibly effective for antibiotic-associated diarrhea, but evidence is insufficient for athletic performance, cirrhosis, constipation, eczema, and diabetes.
Evidence for Bacillus clausii SC-109 and Pediococcus acidilactici isn't established in the data we hold.
How safe is it?
Well-documented data
These probiotics are generally well tolerated in healthy adults, but safety and quality can vary by product and strain. Saccharomyces boulardii should be avoided by people who are critically ill or immunocompromised, because rare cases of serious yeast infection (fungemia) have been reported in ICU patients — especially those with central lines, receiving feeding tubes, or on broad-spectrum antibiotics.
All three checked strains carry similar cautions: live organisms might theoretically cause infection in severely ill or immunocompromised patients. Rare side effects include gastrointestinal complaints (abdominal cramps, gas, nausea, vomiting, loss of appetite) and in one trial, headache.
The safety data for pregnancy and lactation is not on file for any of these ingredients — talk with your doctor or pharmacist before use if you're pregnant or breastfeeding.
Meds to double-check
Moderate interaction found
Check your medications before starting, especially if you take antibiotics (Moderate severity — space them out from this product) or antifungal drugs (Minor severity — they may reduce the probiotic's benefit). If you're in an ICU, on a central line, receiving tube feeding, or have a severely weakened immune system, talk to your doctor before use.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
This product may help with certain types of diarrhea and digestive issues if the science supports the claim on the label. If you're healthy with a strong immune system and not on antibiotics or antifungals right now, it's generally worth trying — but if you're critically ill, immunocompromised, or on multiple medications, check with your pharmacist first.
Always space out antibiotics and this probiotic by a few hours to protect the live organisms.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 3 of 5 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 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
General information
Key facts about Ultimate Probiotic 8 Billion CFU, straight from the product label.
| Brand | Silver Fern Brand |
|---|---|
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jun 16, 2022 |
| DSLD ID | 270215 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Children 4 or More Years of Age, Adult (18 - 50 Years), Dairy Free |
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 Ultimate Probiotic 8 Billion CFU by Silver Fern Brand, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Proprietary Probiotic Blend | 380 mg | -- |
| Saccharomyces boulardii | 0 NP | -- |
| Bacillus clausii SC-109 | 0 NP | -- |
| Pediococcus acidilactici | 0 NP | -- |
| Bacillus coagulans SC-208 | 0 NP | -- |
| Bacillus subtilis HU-58 | 0 NP | -- |
Other ingredients: Cellulose
Tap any ingredient to jump to its full detail below.
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.
Suggested/Recommended/Usage/Directions
Directions: Adults and children above the age of 10: Start with 1 capsule per day for the first week. Take 2 capsules daily following the first week. Recommended to be taken with a meal.
Formulation
Does not contain: Dairy, wheat, rice, soy, artificial colors, or artificial flavors.
Gut health
Precautions
Caution: Do not exceed recommended dose.
Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any other dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any other dietary supplement.
Do not use if safety seal is broken or missing.
Brand IP Statement(s)
Silver Fern Brand Live Well
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Ultimate Probiotic 8 Billion CFU by Silver Fern Brand label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Ultimate Probiotic 8 Billion CFU by Silver Fern Brand
These are the 5 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
Proprietary Probiotic Blend
- › Saccharomyces boulardii
- › Bacillus clausii SC-109
- › Pediococcus acidilactici
- › Bacillus coagulans SC-208
- › Bacillus subtilis HU-58
Other (inactive) ingredients: Cellulose. These complete the product’s ingredient list but are not active constituents.
Ultimate Probiotic 8 Billion CFU by Silver Fern Brand Drug Interactions
HelloPharmacist Interaction Report
Ultimate Probiotic 8 Billion CFU by Silver Fern Brand contains several probiotic strains, and three of them have documented interactions with medications.
The most serious interaction involves Saccharomyces boulardii and antifungal drugs (Minor severity): since S. boulardii is a live yeast, antifungals may kill off a significant portion of the organisms and reduce the probiotic's effectiveness.
Read the full breakdown — every affected drug type, severity by severity
Two other bacterial strains — Bacillus coagulans and Bacillus subtilis — interact with antibiotics (Moderate severity). Both are live organisms, so taking antibiotics at the same time might kill enough of them to undermine their intended benefit.
The recommendation is to separate when you take your antibiotics and this probiotic — your pharmacist can help you space them out.
We couldn't check two of the five ingredients — Bacillus clausii SC-109 and Pediococcus acidilactici — because interaction data isn't on file for them. Altogether, these interactions span 222 individual medications.
Before you start this product, run your exact medications through the checker on this page.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Ultimate Probiotic 8 Billion CFU?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Ultimate Probiotic 8 Billion CFU interact with 222 drugs. Click any drug to see the details.
3 of the 5 ingredients in Ultimate Probiotic 8 Billion CFU interact with drugs. Each result below shows which ingredient is responsible. Bacillus coagulans SC-208 Bacillus subtilis HU-58 Saccharomyces boulardii
AmikacinAmikin, Arikayce
How Amikacin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amikacin interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amikacin interactionAmoxicillinAmix, Amoram, Amoxident, Amoxil Capsules, Amoxil Injection, Galenamox +3 more
How Amoxicillin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amoxicillin interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amoxicillin interactionAmoxicillin VeterinaryBiomox
How Amoxicillin Veterinary interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amoxicillin Veterinary interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amoxicillin Veterinary interactionAmoxicillin, Clavulanate PotassiumAugmentin, Augmentin '125/31 SF', Augmentin '250/62 SF', Augmentin XR, Augmentin-Duo 400/57, Clavulin
How Amoxicillin, Clavulanate Potassium interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amoxicillin, Clavulanate Potassium interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amoxicillin, Clavulanate Potassium interactionAmoxicillin, Omeprazole Magnesium, RifabutinTalicia
How Amoxicillin, Omeprazole Magnesium, Rifabutin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Amphotericin, Tetracycline interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Amphotericin, Tetracycline interactionAmpicillinOmnipen, Omnipen-N, Penbritin, Principen, Rimacillin
How Ampicillin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Ampicillin interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Ampicillin interactionAmpicillin, SulbactamUnasyn
How Ampicillin, Sulbactam interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Ampicillin, Sulbactam interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Ampicillin, Sulbactam interactionAvibactam Sodium, CeftazidimeAvycaz
How Avibactam Sodium, Ceftazidime interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Avibactam Sodium, Ceftazidime interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Avibactam Sodium, Ceftazidime interactionAzithromycinAzasite, Zithromax, Zmax
How Azithromycin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Azithromycin interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Azithromycin interactionAztreonamAzactam
How Aztreonam interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Aztreonam interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Aztreonam interactionBacampicillinPenglobe
How Bacampicillin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Bacampicillin interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Bacampicillin interactionBacitracinBaci-IM, Baciguent, Bacitracin Ointment
How Bacitracin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Bacitracin interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Bacitracin interactionBenznidazoleBenznidazole
How Benznidazole interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Benznidazole interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Benznidazole interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionCapreomycinCapastat
How Capreomycin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Capreomycin interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Capreomycin interactionCarbenicillin Indanyl SodiumGeocillin
How Carbenicillin Indanyl Sodium interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Carbenicillin Indanyl Sodium interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Carbenicillin Indanyl Sodium interactionCefaclorCeclor, Ceclor CD
How Cefaclor interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefaclor interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefaclor interactionCefadroxilCef-Tab, Duricef, Ultracef
How Cefadroxil interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefadroxil interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefadroxil interactionCefamandoleMandol
How Cefamandole interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefamandole interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefamandole interactionCefazolinAncef
How Cefazolin interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefazolin interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefazolin interactionCefdinirOmnicef
How Cefdinir interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefdinir interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefdinir interactionCefditoren PivoxilSpectracef
How Cefditoren Pivoxil interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefditoren Pivoxil interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefditoren Pivoxil interactionCefepimeMaxipime
How Cefepime interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefepime interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefepime interactionCefiderocol Sulfate TosylateFetroja
How Cefiderocol Sulfate Tosylate interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefiderocol Sulfate Tosylate interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefiderocol Sulfate Tosylate interactionCefiximeSuprax
How Cefixime interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefixime interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefixime interactionCefmetazoleZefazone
How Cefmetazole interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefmetazole interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefmetazole interactionCefonicidMonocid
How Cefonicid interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefonicid interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefonicid interactionCefoperazoneCefobid
How Cefoperazone interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefoperazone interactionBacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefoperazone interactionCefotaximeClaforan
How Cefotaxime interacts with Ultimate Probiotic 8 Billion CFU — through 2 ingredients. Tap an ingredient for the detail:
Bacillus Coagulans Sc-208Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B.
Read the full Bacillus Coagulans Sc-208 + Cefotaxime interactionBacillus Subtilis Hu-58Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B.
Read the full Bacillus Subtilis Hu-58 + Cefotaxime interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Ultimate Probiotic 8 Billion CFU with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Bacillus coagulans SC-208
Antibiotic Drugs
Theoretically, taking antibiotics with Bacillus coagulans might decrease the effectiveness of B. coagulans.
B. coagulans preparations usually contain live and active organisms. Therefore, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. coagulans preparations by at least two hours.
Bacillus subtilis HU-58
Antibiotic Drugs
Theoretically, taking Bacillus subtilis with antibiotic drugs might decrease the effectiveness of B. subtilis.
Since B. subtilis preparations usually contain live and active organisms, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and B. subtilis preparations by at least 2 hours.
Saccharomyces boulardii
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.
Brand information
Manufacturer and brand details for Ultimate Probiotic 8 Billion CFU, from the product label.
Ultimate Probiotic 8 Billion CFU by Silver Fern Brand: Common Questions
Does Ultimate Probiotic 8 Billion CFU by Silver Fern Brand interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will this probiotic work if I'm taking antibiotics?
What are the side effects I should watch for?
Can I take this if I'm pregnant or breastfeeding?
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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.
The Full Monographs Behind Ultimate Probiotic 8 Billion CFU’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Saccharomyces Boulardii
Interacts with 40 drugsSaccharomyces 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 → Herb & supplement monographBacillus Coagulans
Interacts with 182 drugsBacillus coagulans is a spore-forming probiotic that survives stomach acid well and may help with some digestive problems such as IBS, constipation, and certain types of diarrhea. The eviden...
Read the full Bacillus Coagulans monograph → Herb & supplement monographBacillus Subtilis
Interacts with 182 drugsBacillus subtilis is a spore-forming probiotic bacterium found in soil and some fermented foods, and it is used mainly to support gut health and digestion. Early research is promising for ce...
Read the full Bacillus Subtilis monograph →Sources & How We Checked
Ultimate Probiotic 8 Billion CFU'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 56 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
- 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.
- 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
- 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.
- 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.
- 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
- 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
- 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.
- 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.
- Borriello SP, Hammes WP, Holzapfel W, et al. Safety of probiotics that contain lactobacilli or bifidobacteria. Clin Infect Dis 2003;36:775-80. PubMed
- Marteau P, Seksik P. Tolerance of probiotics and prebiotics. J Clin Gastroenterol 2004;38:S67-9. PubMed
- Munoz P, Bouza E, Cuenca-Estrella M, et al. Saccharomyces cerevisiae fungemia: an emerging infectious disease. Clin Infect Dis 2005;40:1625-34. PubMed
- 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
- 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
- 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
- Ellouze O, Berthoud V, Mervant M, Parthiot JP, Girard C. Septic shock due to Sacccaromyces boulardii. Med Mal Infect. 2016;46(2):104-105.
- 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
- 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
- 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
- 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.
- Roy U, Jessani LG, Rudramurthy SM, et al. Seven cases of Saccharomyces fungaemia related to use of probiotics. Mycoses 2017;60(6):375-380.
- 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.
- 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
- 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
- Wombwell E, Bransteitter B, Gillen LR. Incidence of Saccharomyces cerevisiae fungemia in hospitalised patients administered Saccharomyces boulardii probiotic. Mycoses 2021;64(12):1521-1526.
- 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.
- 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 →
Bacillus Coagulans 20 references
- Saxelin M, Chuang NH, Chassy B, et al. Lactobacilli and bacteremia in southern Finland 1989-1992. Clin Infect Dis 1996;22:564-6. PubMed
- Tynkkynen S, Singh KV, Varmanen P. Vancomycin resistance factor of Lactobacillus rhamnosus GG in relation to enterococcal vancomycin resistance (van) genes. Int J Food Microbiol 1998;41:195-204. PubMed
- Klein G, Zill E, Schindler R, et al. Peritonitis associated with vancomycin-resistant Lactobacillus rhamnosus in a continuous ambulatory peritoneal dialysis patient; organism identification, antibiotic therapy, and case report. J Clin Microbiol 1998;36:
- Kalima P, Masterton RG, Roddie PH, et al. Lactobacillus rhamnosus infection in a child following bone marrow transplant. J Infect 1996;32:165-7. PubMed
- Goldin BR. Health Benefits of probiotics. Br J Nutr 1998;80:S203-7. DOI
- Rautio M, Jousimies-Somer H, Kauma H, et al. Liver abscess due to Lactobacillus rhamnosus strain indistinguishable from L. rhamnosus strain GG. Clin Infect Dis 1999;28:1159-60.
- MacGregor G, Smith AJ, Thakker B, Kinsella J. Yoghurt biotherapy: contraindicated in immunosuppressed patients? Postgrad Med J 2002;78:366-7. PubMed
- Land MH, Rouster-Stevens K, Woods CR, et al. Lactobacillus sepsis associated with probiotic therapy. Pediatrics 2005;115:178-81.
- De Groote MA, Frank DN, Dowell E, et al. Lactobacillus rhamnosus GG bacteremia associated with probiotic use in a child with short gut syndrome. Pediatr Infect Dis J 2005;24:278-80. PubMed
- Vahabnezhad E, Mochon AB, Wozniak LJ, Ziring DA. Lactobacillus bacteremia associated with probiotic use in a pediatric patient with ulcerative colitis. J Clin Gastroenterol. 2013;47(5):437-9. PubMed
- Pruccoli G, Silvestro E, Pace Napoleone C, Aidala E, Garazzino S, Scolfaro C. Are probiotics safe? Bifidobacterium bacteremia in a child with severe heart failure. Infez Med. 2019;27(2):175-178.
- Sendil S, Shrimanker I, Mansoora Q, Goldman J, Nookala VK. Lactobacillus rhamnosus bacteremia in an immunocompromised renal transplant patient. Cureus. 2020;12(2):e6887. PubMed
- Albarillo FS, Shah U, Joyce C, Slade D. Lactobacillus rhamnosus Infection: A single-center 4-year descriptive analysis. J Glob Infect Dis. 2020;12(3):119-123. PubMed
- Pasala S, Singer L, Arshad T, Roach K. Lactobacillus endocarditis in a healthy patient with probiotic use. IDCases. 2020;22:e00915. PubMed
- Agrawal S, Tuchman ES, Bruce MJ, Theodorou ME. Fatal Lactobacillus endocarditis in a patient with transcatheter aortic valve replacement. BMJ Case Rep. 2020;13(11):e236835.
- Antoun M, Hattab Y, Akhrass FA, Hamilton LD. Uncommon pathogen, Lactobacillus, causing infective endocarditis: Case report and review. Case Rep Infect Dis. 2020;2020:8833948. PubMed
- Rossi F, Amadoro C, Gasperi M, Colavita G. Lactobacilli infection case reports in the last three years and safety implications. Nutrients. 2022;14(6):1178. PubMed
- Franko B, Vaillant M, Recule C, Vautrin E, et al. Lactobacillus paracasei endocarditis in a consumer of probiotics. Med Mal Infect. 2013;43(4):171-3. PubMed
- Campbell RE, Miller A, Afroze A. Native valve endocarditis secondary to Lactobacillus paracasei bacteremia. Consultant. 2020;60(9):27-8. DOI
- Kato K, Funabashi N, Takaoka H, et al. Lactobacillus paracasei endocarditis in a consumer of probiotics with advanced and severe bicuspid aortic valve stenosis complicated with diffuse left ventricular mid-layer fibrosis. Int J Cardiol. 2016;224:157-161. PubMed
Bacillus Subtilis 10 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Lampropoulos PK, Gkentzi D, Tzifas S, Dimitriou G. Neonatal sepsis due to Bacillus subtilis. Cureus 2021;13(9):e17692. PubMed
- La Jeon Y, Yang JJ, Kim MJ, et al. Combined Bacillus licheniformis and Bacillus subtilis infection in a patient with oesophageal perforation. J Med Microbiol 2012;61(Pt 12):1766-1769. PubMed
- Wallet F, Crunelle V, Roussel-Delvallez M, Fruchart A, Saunier P, Courcol RJ. Bacillus subtilis as a cause of cholangitis in polycystic kidney and liver disease. Am J Gastroenterol 1996;91(7):1477-8.
- Velasco E, Martins CA, Tabak D, Bouzas LF. "Bacillus subtilis" infection in a patient submitted to a bone marrow transplantation. Rev Paul Med 1992;110(3):116-7.
- Kato A, Yoshifuji A, Komori K, et al. A case of Bacillus subtilis var. natto bacteremia caused by ingestion of natto during COVID-19 treatment in a maintenance hemodialysis patient with multiple myeloma. J Infect Chemother 2022;28(8):1212-1215. PubMed
- Freedman KE, Hill JL, Wei Y, et al. Examining the gastrointestinal and immunomodulatory effects of the novel probiotic Bacillus subtilis DE111. Int J Mol Sci 2021;22(5):2453. PubMed
- Lefevre M, Racedo SM, Denayrolles M, et al. Safety assessment of Bacillus subtilis CU1 for use as a probiotic in humans. Regul Toxicol Pharmacol 2017;83:54-65. PubMed
- Hanifi A, Culpepper T, Mai V, et al. Evaluation of Bacillus subtilis R0179 on gastrointestinal viability and general wellness: a randomised, double-blind, placebo-controlled trial in healthy adults. Benef Microbes 2015;6(1):19-27. PubMed
- Tokano M, Tarumoto N, Imai K, et al. A case of bacterial meningitis caused by Bacillus subtilis var. natto. Intern Med. 2022. Epub ahead of print.
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