Primadophilus Reuteri Probiotic Pearls Ingredients & Drug Interactions
by Nature's Way
What is this page for?
First and foremost: checking Primadophilus Reuteri Probiotic Pearls 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
Primadophilus Reuteri Probiotic Pearls is a dietary supplement by Nature's Way with 4 active ingredients. Its ingredients are commonly taken for digestive health and regularity, irritable bowel syndrome (ibs), diarrhea (including antibiotic-related).Based on those ingredients, 182 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bifidobacterium longum BB536, Howaru. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Primadophilus Reuteri Probiotic Pearls by Nature's Way
Ask about any prescription or over-the-counter medication and we check it for interactions with Primadophilus Reuteri Probiotic Pearls by Nature's Way — 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 Primadophilus Reuteri Probiotic Pearls by Nature's Way
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 probiotic contains four active ingredients, all live bacterial strains: a proprietary blend that houses Lactobacillus rhamnosus LR-32 and Lactobacillus reuteri SD-5865, plus two individual strains—Bifidobacterium longum BB536 and Lactobacillus acidophilus (Howaru). These are "good" bacteria meant to support gut flora balance.
The softgel capsule also holds inactive ingredients—palm oil, fish gelatin, glycerin, sunflower lecithin, and pectin—that help deliver and preserve the live cultures.
Does it work?
Moderate evidence
The evidence for what this product can do is mixed and incomplete. Lactobacillus acidophilus (the Howaru strain) is possibly effective for irritable bowel syndrome (IBS), antibiotic-associated diarrhea, Helicobacter pylori, and bacterial vaginosis.
However, Bifidobacterium longum doesn't have reliable evidence for any of the conditions we have data for—including age-related cognitive decline, hay fever, antibiotic-associated diarrhea, anxiety, asthma, and athletic performance. For the other two bacteria in this product, we hold no effectiveness data.
How safe is it?
Well-documented data
Bifidobacterium longum and Lactobacillus acidophilus are both generally well tolerated in healthy people, though caution is advised if you're seriously ill or immune-compromised—your doctor should weigh the risks and benefits. Rare gastrointestinal side effects reported with these strains include abdominal discomfort, flatulence, constipation, and bloating.
Very rarely, a dry cough has been reported. Both ingredients carry limited safety data, so talk with your doctor before using this product, especially while breastfeeding.
In critically ill or hospitalized patients—particularly preterm infants—there have been rare reports of Bifidobacterium entering the bloodstream and causing serious infections; this is not a typical concern for healthy adults.
Meds to double-check
Moderate interaction found
Separate antibiotic drugs from this probiotic by several hours—they interact at Moderate severity with both Bifidobacterium longum and Lactobacillus acidophilus. Use the medication checker below to see if any of your prescriptions are affected.
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 probiotic may help if you have IBS or antibiotic-associated diarrhea, though the evidence for most claimed benefits isn't solid yet. If you take antibiotics, space them a few hours apart from this product so the bacteria don't get killed off.
Talk to your pharmacist before starting, especially if you're seriously ill, immune-compromised, or breastfeeding.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 25, 2025.
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 Primadophilus Reuteri Probiotic Pearls, straight from the product label.
| Brand | Nature's Way |
|---|---|
| Barcode (UPC) | 033674157701 |
| Net contents | 60 Softgel(s) |
| Market status | On market |
| Date entered into DSLD | Jun 25, 2025 |
| DSLD ID | 332947 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Softgel Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Primadophilus Reuteri Probiotic Pearls by Nature's Way, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Proprietary Probiotic Blend | 13 mg | -- |
| Lactobacillus rhamnosus LR-32 | 0 NP | -- |
| Lactobacillus reuteri SD-5865 | 0 NP | -- |
| Bifidobacterium longum BB536 | 0 NP | -- |
| Howaru | 0 NP | -- |
Other ingredients: Palm Oil, Fish Gelatin, Glycerin, Sunflower Lecithin, Pectin
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
Once daily
Recommendation: Swallow 1 softgel daily with or without food. Do not chew or crush.
Storage
No refrigeration required
Store at room temperature. Avoid excessive heat and direct sunlight.
Formula
Formulated with 4 probiotic strains for digestive balance Primadophilus Reuteri Probiotic Pearls with Lactobacillus reuteri to promote healthy gut flora Active Lactobacilli and Bifidobacterium cultures to benefit the small and large intestines
Howaru Probiotic Quality you can feel
Probiotic 1 billion cultures, 4 Probiotic strains
Superior Probiotic
Formulation
Also promotes immune function Advanced triple-layer softgel survives stomach acid
Contains no salt, soy, wheat, or artificial colors.
Product of Japan
Supports digestive & immune health Designed to survive stomach acid Pearls Easy to swallow Small & easy to swallow Survives stomach acid True release
General Statements
Explore more products at naturesway.com
Questions? 1-800-962-8873 / pearlsprobiotics.com
Precautions
Contains milk and fish (Tilapia).
If you are taking any medications, consult a healthcare professional before use.
Keep out of reach of children.
This product has a tamper-evident foil pouch. Do not use if foil or plastic is punctured.
Seals/Symbols
Howaru Probiotic Quality you can feel
Brand IP Statement(s)
Howaru is a registered trademark of IFF and is used under license. Copyright 2023 Nature's Way Brands, LLC
FDA Disclaimer Statement
These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FDA Statement of Identity
Probiotic Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Primadophilus Reuteri Probiotic Pearls by Nature's Way 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 Primadophilus Reuteri Probiotic Pearls by Nature's Way
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Softgel(s) Dosage formSoftgel Capsule Servings per container60 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
- › Lactobacillus rhamnosus LR-32
- › Lactobacillus reuteri SD-5865
- › Bifidobacterium longum BB536
- › Howaru
Other (inactive) ingredients: Palm Oil, Fish Gelatin, Glycerin, Sunflower Lecithin, Pectin. These complete the product’s ingredient list but are not active constituents.
Primadophilus Reuteri Probiotic Pearls by Nature's Way Drug Interactions
HelloPharmacist Interaction Report
Primadophilus Reuteri Probiotic Pearls by Nature's Way contains live bacterial strains, and one of them—Bifidobacterium longum—has a documented interaction with antibiotics.
Taking this probiotic at the same time as antibiotic drugs may reduce how well the probiotic works, because antibiotics can kill off the live organisms in the product. The same concern applies to Lactobacillus acidophilus (the Howaru strain in this product), which interacts with antibiotics in the same way.
Read the full breakdown — every affected drug type, severity by severity
Altogether, these interactions span 182 individual medications. Both antibiotic interactions carry Moderate severity.
The practical fix is straightforward: separate when you take them. Your pharmacist or doctor can recommend a safe gap—usually a few hours is enough.
We could not check two of the four ingredients in this product: Lactobacillus rhamnosus LR-32 and Lactobacillus reuteri SD-5865. Use the medication checker on this page to run your exact prescriptions against the product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Primadophilus Reuteri Probiotic Pearls?
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 Primadophilus Reuteri Probiotic Pearls interact with 182 drugs. Click any drug to see the details.
2 of the 4 ingredients in Primadophilus Reuteri Probiotic Pearls interact with drugs. Each result below shows which ingredient is responsible. Bifidobacterium longum BB536 Howaru
AmikacinAmikin, Arikayce
How Amikacin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Amikacin interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amikacin interactionAmoxicillinAmix, Amoram, Amoxident, Amoxil Capsules, Amoxil Injection, Galenamox +3 more
How Amoxicillin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amoxicillin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Amoxicillin interactionAmoxicillin VeterinaryBiomox
How Amoxicillin Veterinary interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amoxicillin Veterinary interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + 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 Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amoxicillin, Clavulanate Potassium interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Amoxicillin, Clavulanate Potassium interactionAmoxicillin, Omeprazole Magnesium, RifabutinTalicia
How Amoxicillin, Omeprazole Magnesium, Rifabutin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Amoxicillin, Omeprazole Magnesium, Rifabutin interactionAmphotericin, TetracyclineMysteclin-F
How Amphotericin, Tetracycline interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Amphotericin, Tetracycline interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Amphotericin, Tetracycline interactionAmpicillinOmnipen, Omnipen-N, Penbritin, Principen, Rimacillin
How Ampicillin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Ampicillin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Ampicillin interactionAmpicillin, SulbactamUnasyn
How Ampicillin, Sulbactam interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Ampicillin, Sulbactam interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Ampicillin, Sulbactam interactionAvibactam Sodium, CeftazidimeAvycaz
How Avibactam Sodium, Ceftazidime interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Avibactam Sodium, Ceftazidime interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Avibactam Sodium, Ceftazidime interactionAzithromycinAzasite, Zithromax, Zmax
How Azithromycin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Azithromycin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Azithromycin interactionAztreonamAzactam
How Aztreonam interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Aztreonam interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Aztreonam interactionBacampicillinPenglobe
How Bacampicillin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Bacampicillin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Bacampicillin interactionBacitracinBaci-IM, Baciguent, Bacitracin Ointment
How Bacitracin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Bacitracin interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Bacitracin interactionBenznidazoleBenznidazole
How Benznidazole interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Benznidazole interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Benznidazole interactionBismuth Subsalicylate, Metronidazole, TetracyclineHelidac
How Bismuth Subsalicylate, Metronidazole, Tetracycline interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Bismuth Subsalicylate, Metronidazole, Tetracycline interactionCapreomycinCapastat
How Capreomycin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Capreomycin interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Capreomycin interactionCarbenicillin Indanyl SodiumGeocillin
How Carbenicillin Indanyl Sodium interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Carbenicillin Indanyl Sodium interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Carbenicillin Indanyl Sodium interactionCefaclorCeclor, Ceclor CD
How Cefaclor interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefaclor interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefaclor interactionCefadroxilCef-Tab, Duricef, Ultracef
How Cefadroxil interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefadroxil interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefadroxil interactionCefamandoleMandol
How Cefamandole interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefamandole interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefamandole interactionCefazolinAncef
How Cefazolin interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefazolin interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefazolin interactionCefdinirOmnicef
How Cefdinir interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefdinir interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefdinir interactionCefditoren PivoxilSpectracef
How Cefditoren Pivoxil interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefditoren Pivoxil interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefditoren Pivoxil interactionCefepimeMaxipime
How Cefepime interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefepime interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefepime interactionCefiderocol Sulfate TosylateFetroja
How Cefiderocol Sulfate Tosylate interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefiderocol Sulfate Tosylate interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefiderocol Sulfate Tosylate interactionCefiximeSuprax
How Cefixime interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefixime interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefixime interactionCefmetazoleZefazone
How Cefmetazole interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefmetazole interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefmetazole interactionCefonicidMonocid
How Cefonicid interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefonicid interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefonicid interactionCefoperazoneCefobid
How Cefoperazone interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
HowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefoperazone interactionBifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefoperazone interactionCefotaximeClaforan
How Cefotaxime interacts with Primadophilus Reuteri Probiotic Pearls — through 2 ingredients. Tap an ingredient for the detail:
Bifidobacterium Longum Bb536Antibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B.
Read the full Bifidobacterium Longum Bb536 + Cefotaxime interactionHowaruAntibiotic Drugs Moderate
Interaction Summary
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L.
Read the full Howaru + Cefotaxime interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Primadophilus Reuteri Probiotic Pearls 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.
Bifidobacterium longum BB536
Antibiotic Drugs
Theoretically, taking Bifidobacterium longum with antibiotic drugs might decrease the effectiveness of B. longum.
Since B. longum 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. longum preparations by at least 2 hours.
Howaru
Antibiotic Drugs
Theoretically, taking Lactobacillus acidophilus with antibiotic drugs might decrease the effectiveness of L. acidophilus.
L. acidophilus 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 L. acidophilus preparations by at least two hours.
Brand information
Manufacturer and brand details for Primadophilus Reuteri Probiotic Pearls, from the product label.
Nature's Way
See all Nature's Way products- Name
- Nature's Way Brands, LLC
- City
- Green Bay
- State
- WI
- ZipCode
- 54311
- Phone Number
- 1-800-962-8873
- Web Address
- pearlsprobiotics.com
Primadophilus Reuteri Probiotic Pearls by Nature's Way: Common Questions
Does Primadophilus Reuteri Probiotic Pearls by Nature's Way interact with any medications?
How can one product interact with so many drugs?
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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 Primadophilus Reuteri Probiotic Pearls’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Bifidobacterium Longum
Interacts with 182 drugsBifidobacterium longum is a 'friendly' bacterium found naturally in the human gut and used as a probiotic. It is generally well tolerated and is most studied for digestive issues, though evi...
Read the full Bifidobacterium Longum monograph → Herb & supplement monographLactobacillus Acidophilus
Interacts with 182 drugsLactobacillus acidophilus is a 'friendly' bacterium used as a probiotic to support gut and vaginal health. It is generally well tolerated in healthy people, and there is reasonable evidence...
Read the full Lactobacillus Acidophilus monograph →Sources & How We Checked
Primadophilus Reuteri Probiotic Pearls'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 36 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.
Bifidobacterium Longum 21 references
- Ha GY, Yang CH, Kim H, Chong Y. Case of sepsis caused by Bifidobacterium longum. J Clin Microbiol 1999;37:1227-8.
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Xiao JZ, Takahashi S, Odamaki T, et al. Antibiotic susceptibility of bifidobacterial strains distributed in the Japanese market. Biosci Biotechnol Biochem. 2010;74(2):336-42. PubMed
- Rautava S, Kainonen E, Salminen S, Isolauri E. Maternal probiotic supplementation during pregnancy and breast-feeding reduces the risk of eczema in the infant. J Allergy Clin Immunol. 2012;130(6):1355-60. 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.
- Pellonperä O, Vahlberg T, Mokkala K, et al. Weight gain and body composition during pregnancy: a randomised pilot trial with probiotics and/or fish oil. Br J Nutr. 2020 Nov 4:1-11. PubMed
- Pellonperä O, Mokkala K, Houttu N, et al. Efficacy of fish oil and/or probiotic intervention on the incidence of gestational diabetes mellitus in an at-risk group of overweight and obese women: A randomized, placebo-controlled, double-blind clinical trial PubMed
- Shahriari A, Karimi E, Shahriari M, Aslani N, Khooshideh M, Arab A. The effect of probiotic supplementation on the risk of gestational diabetes mellitus among high-risk pregnant women: A parallel double-blind, randomized, placebo-controlled clinical trial PubMed
- Esaiassen E, Hjerde E, Cavanagh JP, Simonsen GS, Klingenberg C; Norwegian Study Group on Invasive Bifidobacterial Infections. Bifidobacterium bacteremia: Clinical characteristics and a genomic approach to assess pathogenicity. J Clin Microbiol. 2017;55(7) PubMed
- Enomoto T, Sowa M, Nishimori K, et al. Effects of bifidobacterial supplementation to pregnant women and infants in the prevention of allergy development in infants and on fecal microbiota. Allergol Int 2014;63(4):575-85. PubMed
- US Food and Drug Administration (FDA). Dear Healthcare Provider Letter: Warning Regarding Use of Probiotics in Preterm Infants. September 2023. Available at: https://www.fda.gov/media/172606/download?attachment. Accessed November 1, 2023.
- Pillai A, Tan J, Paquette V, Panczuk J. Does probiotic bacteremia in premature infants impact clinically relevant outcomes? A case report and updated review of literature. Clin Nutr ESPEN. 2020;39:255-259. PubMed
- Sabaté JM, Iglicki F. Effect of Bifidobacterium longum 35624 on disease severity and quality of life in patients with irritable bowel syndrome. World J Gastroenterol 2022;28(7):732-744.
- Malaguarnera M, Greco F, Barone G, Gargante MP, Malaguarnera M, Toscano MA. Bifidobacterium longum with fructo-oligosaccharide (FOS) treatment in minimal hepatic encephalopathy: a randomized, double-blind, placebo-controlled study. Dig Dis Sci 2007;52(11) PubMed
- Zbinden A, Zbinden R, Berger C, Arlettaz R. Case series of Bifidobacterium longum bacteremia in three preterm infants on probiotic therapy. Neonatology 2015;107(1):56-9.
- Tamaki H, Nakase H, Inoue S, et al. Efficacy of probiotic treatment with Bifidobacterium longum 536 for induction of remission in active ulcerative colitis: A randomized, double-blinded, placebo-controlled multicenter trial. Dig Endosc 2016;28(1):67-74.
- Bertelli C, Pillonel T, Torregrossa A, et al. Bifidobacterium longum bacteremia in preterm infants receiving probiotics. Clin Infect Dis 2015;60(6):924-7. PubMed
- Esaiassen E, Cavanagh P, Hjerde E, Simonsen GS, Støen R, Klingenberg C. Bifidobacterium longum subspecies infantis bacteremia in 3 extremely preterm infants receiving probiotics. Emerg Infect Dis 2016;22(9):1664-6.
- Tena D, Losa C, Medina MJ, Sáez-Nieto JA. Peritonitis caused by Bifidobacterium longum: case report and literature review. Anaerobe 2014;27:27-30. PubMed
- Sangkanjanavanich S, Pradubpongsa P, Mitthamsiri W, Sangasapaviliya A, Boonpiyathad T. Bifidobacterium infantis 35624 efficacy in patients with uncontrolled asthma: A randomized placebo-controlled trial. Ann Allergy Asthma Immunol 2022;129(6):790-792. PubMed
- Wilson HL, Ong CW. Bifidobacterium longum vertebrodiscitis in a patient with cirrhosis and prostate cancer. Anaerobe 2017;47:47-50. PubMed
See these in context on the Bifidobacterium Longum monograph →
Lactobacillus Acidophilus 15 references
- Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
- Begtrup LM, de Muckadell OB, Kjeldsen J, Christensen RD, Jarbøl DE. Long-term treatment with probiotics in primary care patients with irritable bowel syndrome--a randomised, double-blind, placebo controlled trial. Scand J Gastroenterol 2013;48(10):1127-35 PubMed
- Chatterjee S, Kar P, Das T, Ray S, Gangulyt S, Rajendiran C, Mitra M. Randomised placebo-controlled double blind multicentric trial on efficacy and safety of Lactobacillus acidophilus LA-5 and Bifidobacterium BB-12 for prevention of antibiotic-associated
- Shavakhi A, Tabesh E, Yaghoutkar A, Hashemi H, Tabesh F, Khodadoostan M,Minakari M, Shavakhi S, Gholamrezaei A. The effects of multistrain probiotic compound on bismuth-containing quadruple therapy for Helicobacter pylori infection: a randomized placebo-c
- Karamali M, Dadkhah F, Sadrkhanlou M, et al. Effects of probiotic supplementation on glycaemic control and lipid profiles in gestational diabetes: a randomized, double-blind, placebo-controlled trial. Diabetes Metab 2016;42(4):234-41. PubMed
- Badehnoosh B, Karamali M, Zarrati M, et al. The effects of probiotic supplementation on biomarkers of inflammation, oxidative stress and pregnancy outcomes in gestational diabetes. J Matern Fetal Neonatal Med. 2018 May;31(9):1128-1136.
- Kumar S, Kumar R, Rohilla L, Jacob N, Yadav J, Sachdeva N. A high potency multi-strain probiotic improves glycemic control in children with new-onset type 1 diabetes mellitus: A randomized, double-blind, and placebo-controlled pilot study. Pediatr Diabete
- Shahriari A, Karimi E, Shahriari M, Aslani N, Khooshideh M, Arab A. The effect of probiotic supplementation on the risk of gestational diabetes mellitus among high-risk pregnant women: A parallel double-blind, randomized, placebo-controlled clinical trial PubMed
- Xiao SD, Zhang DZ, Lu H, et al. Multicenter, randomized, controlled trial of heat-killed Lactobacillus acidophilus LB in patients with chronic diarrhea. Adv Ther. 2003;20(5):253-60.
- 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
- Ozer M, Goksu SY, Shahverdiani A, Mustafa M. Lactobacillus acidophilus-induced endocarditis and associated splenic abscess. Case Rep Infect Dis 2020;2020:1382709.
- Sadrin S, Sennoune S, Gout B, et al. A 2-strain mixture of Lactobacillus acidophilus in the treatment of irritable bowel syndrome: A placebo-controlled randomized clinical trial. Dig Liver Dis 2020;52(5):534-540. PubMed
- Stoffer JN, Slingsby TJ, Giuliari GP. Lactobacillus acidophilus endophthalmitis after intravitreal bevacizumab injection requiring intraocular lens explantation. Can J Ophthalmol 2022;57(1):e21-e22. PubMed
- Cukovic-Cavka S, Likic R, Francetic I, Rustemovic N, Opacic M, Vucelic B. Lactobacillus acidophilus as a cause of liver abscess in a NOD2/CARD15-positive patient with Crohn's disease. Digestion 2006;73(2-3):107-10.
- Hui J, Ren Y, Wang Y, Han Q. Lactobacillus acidophilus endophthalmitis postcataract operation: A case report with a literature review. Ocul Immunol Inflamm 2023.
See these in context on the Lactobacillus Acidophilus 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