Multi-Probiotic 15 Billion Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Multi-Probiotic 15 Billion 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
Multi-Probiotic 15 Billion is a dietary supplement by Douglas Laboratories with 10 active ingredients. Its ingredients are commonly taken for sore throat and cough, heartburn and acid reflux, digestive upset and ibs.Based on those ingredients, 2,080 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Ulmus fulva, Bifidobacterium longum (Bl-05), Lactobacillus acidophilus (DDS-1). Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Multi-Probiotic 15 Billion by Douglas Laboratories
Ask about any prescription or over-the-counter medication and we check it for interactions with Multi-Probiotic 15 Billion by Douglas Laboratories — 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 Multi-Probiotic 15 Billion by Douglas Laboratories
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 10 active ingredients: a prebiotic blend (FOS), slippery elm inner bark, and eight live probiotic strains — Lactococcus lactis, Lactobacillus rhamnosus, Bifidobacterium lactis, Bifidobacterium longum, Bifidobacterium bifidum/lactis, Streptococcus thermophilus, Lactobacillus acidophilus, and Lactobacillus gasseri. Each capsule delivers 15 billion live organisms aimed at supporting digestive health.
The inactive ingredients are bovine gelatin (the capsule), vegetable stearate, and silica.
Does it work?
Moderate evidence
Evidence for most of these probiotics remains limited. Lactobacillus acidophilus shows possibly effective ratings for irritable bowel syndrome, Helicobacter pylori infection, antibiotic-associated diarrhea, and bacterial vaginosis.
The other probiotic strains and slippery elm all carry insufficient reliable evidence ratings across their studied uses — meaning the science hasn't yet established whether they work for those conditions. So while probiotics are widely used, don't expect proven benefits for any particular health goal unless your own doctor or pharmacist has discussed one specific to you.
How safe is it?
Well-documented data
Most of these probiotics are generally well tolerated in healthy adults and children. However, slippery elm has limited high-quality safety data and may cause contact dermatitis or allergic reactions in some people.
All the live-organism probiotics carry a rare but serious caution: in critically ill, immune-compromised, or preterm patients, they've been linked to bloodstream infection (bacteremia) and sepsis. Mild gastrointestinal side effects — bloating, flatulence, abdominal discomfort — have been reported rarely.
If you're seriously ill or have a weakened immune system, talk with your doctor before taking this product.
Meds to double-check
Moderate interaction found
Before taking this product, double-check with your pharmacist or doctor if you're on antibiotic drugs (Moderate concern — they may reduce the probiotic's effectiveness, so space doses several hours apart) or any oral medications in general (Moderate concern — slippery elm may slow their absorption). No interactions are documented for the other probiotic strains we could check, but we hold no data on FOS or four of the bacterial strains, so your medication checker is important.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.
This multi-strain probiotic is generally well tolerated in healthy adults and has some evidence behind individual strains for specific digestive issues. Don't take it at the same time as antibiotics — space them several hours apart — and run your full medication list through the checker before starting, since slippery elm may slow how your body absorbs oral drugs.
If you're seriously ill, immune-compromised, or have a central line (IV catheter), check with your doctor first. A conversation with your own pharmacist or doctor will help you decide if this product fits your needs.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 5 of 10 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jul 23, 2020.
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 Multi-Probiotic 15 Billion, straight from the product label.
| Brand | Douglas Laboratories |
|---|---|
| Barcode (UPC) | 310539036631 |
| Net contents | 60 Capsule(s) |
| Market status | On market |
| Date entered into DSLD | Jul 23, 2020 |
| DSLD ID | 230361 |
| Product type | Other Combinations |
| Supplement form | Capsule |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten 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 Multi-Probiotic 15 Billion by Douglas Laboratories, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| FOS | 0 NP | -- |
| Ulmus fulva | 0 NP | -- |
| Lactococcus lactis (Ll-23) | 0 NP | -- |
| Digestive and Prebiotic Blend | 210 mg | -- |
| Lactobacillus rhamnosus (Lr-32) | 0 NP | -- |
| Bifidobacterium lactis (HN019) | 0 NP | -- |
| Bifidobacterium longum (Bl-05) | 0 NP | -- |
| Bifidobacterium bifidum/lactis (Bb-02) | 0 NP | -- |
| Streptococcus thermophilus (St-21) | 0 NP | -- |
| Multi-Strain Probiotic Blend | 0 NP | -- |
| Lactobacillus acidophilus (DDS-1) | 0 NP | -- |
| Lactobacillus gasserri (Lg-36) | 0 NP | -- |
Other ingredients: Bovine Gelatin, Vegetable Stearate, Silica
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
Suggested Usage: As a dietary supplement, take 1 capsule daily or as directed by your health professional.
Precautions
Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
Keep out of the reach of children.
Use only if safety seal is intact.
Storage
Store in a cool, dry place.
Brand IP Statement(s)
Multi-Probiotic is a registered mark of Nutri-Health Supplements, LLC, used with permission. DDS is a trademark of UAS Laboratories LLC and used under license.
Formulation
Gluten-free, Non-GMO
Gastrointestinal and immune health
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.
General Statements
Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our manufacturing excellence
FDA Statement of Identity
Dietary Supplement
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Multi-Probiotic 15 Billion by Douglas Laboratories 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 Multi-Probiotic 15 Billion by Douglas Laboratories
These are the 10 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Capsule(s) Dosage formCapsule 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.
Digestive and Prebiotic Blend
- › FOS
- › Ulmus fulva
Multi-Strain Probiotic Blend
- › Lactococcus lactis (Ll-23)
- › Lactobacillus rhamnosus (Lr-32)
- › Bifidobacterium lactis (HN019)
- › Bifidobacterium longum (Bl-05)
- › Bifidobacterium bifidum/lactis (Bb-02)
- › Streptococcus thermophilus (St-21)
- › Lactobacillus acidophilus (DDS-1)
- › Lactobacillus gasserri (Lg-36)
Other (inactive) ingredients: Bovine Gelatin, Vegetable Stearate, Silica. These complete the product’s ingredient list but are not active constituents.
Multi-Probiotic 15 Billion by Douglas Laboratories Drug Interactions
HelloPharmacist Interaction Report
Multi-Probiotic 15 Billion by Douglas Laboratories interacts with medications through its slippery elm and probiotic (Bifidobacterium longum, Lactobacillus acidophilus, and Lactobacillus gasseri) content.
The most serious documented interaction is a Moderate risk with antibiotic drugs: since these probiotics contain live organisms, antibiotics taken at the same time may kill them and reduce the product's effectiveness. Slippery elm poses a separate Moderate interaction with oral drugs in general — its mucilage may slow how your body absorbs them and lower their levels in your blood.
Read the full breakdown — every affected drug type, severity by severity
Additionally, timing matters with antibiotics. If you take an antibiotic, space it several hours away from this product so the probiotic survives.
The slippery elm effect applies broadly to any oral medication, so if you're on regular prescriptions, your pharmacist or doctor should review your specific drugs before you start.
We could not check several ingredients in this blend — FOS, Lactococcus lactis (Ll-23), Lactobacillus rhamnosus (Lr-32), Bifidobacterium lactis (HN019), and Bifidobacterium bifidum/lactis (Bb-02) — because we hold no interaction data for them. Altogether, these interactions span 2,081 individual medications.
Use the medication checker on this page to verify your exact drugs before taking this product.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against Multi-Probiotic 15 Billion?
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 Multi-Probiotic 15 Billion interact with 2,080 drugs. Click any drug to see the details.
4 of the 10 ingredients in Multi-Probiotic 15 Billion interact with drugs. Each result below shows which ingredient is responsible. Ulmus fulva Bifidobacterium longum (Bl-05) Lactobacillus acidophilus (DDS-1) Lactobacillus gasserri (Lg-36)
Acetaminophen, DiphenhydramineTylenol PM, Tylenol PM Ex Strength
How Acetaminophen, Diphenhydramine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Diphenhydramine interactionAcetaminophen, Diphenhydramine, PseudoephedrineChildren's Tylenol Allergy, Cold Control, Contac Night Allergy Relief
How Acetaminophen, Diphenhydramine, Pseudoephedrine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Diphenhydramine, Pseudoephedrine interactionAcetaminophen, Doxylamine, PseudoephedrineEx Strength Tylenol Sinus Nighttime
How Acetaminophen, Doxylamine, Pseudoephedrine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Doxylamine, Pseudoephedrine interactionAcetaminophen, HydrocodoneAnexsia, Anodynos DHC, Azdone, Co-Gesic, Doucet, Lorcet +9 more
How Acetaminophen, Hydrocodone interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Hydrocodone interactionAcetaminophen, IbuprofenCombogesic
How Acetaminophen, Ibuprofen interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Ibuprofen interactionAcetaminophen, MeperidineDemerol APAP
How Acetaminophen, Meperidine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Meperidine interactionAcetaminophen, MethocarbamolRobaxacet
How Acetaminophen, Methocarbamol interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Methocarbamol interactionAcetaminophen, OrphenadrineOrfenagesic
How Acetaminophen, Orphenadrine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Orphenadrine interactionAcetaminophen, OxycodonePercocet, Roxicet, Tylox, Xartemis XR
How Acetaminophen, Oxycodone interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Oxycodone interactionAcetaminophen, Pamabrom, PyrilamineMidol Max Strength PMS, Pamprin, Pamprin ES
How Acetaminophen, Pamabrom, Pyrilamine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Pamabrom, Pyrilamine interactionAcetaminophen, PentazocineTalacen
How Acetaminophen, Pentazocine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Pentazocine interactionAcetaminophen, Phenylephrine, ChlorpheniramineSuper Cold Tabs
How Acetaminophen, Phenylephrine, Chlorpheniramine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Phenylephrine, Chlorpheniramine interactionAcetaminophen, PhenylpropanolamineTetra Caps
How Acetaminophen, Phenylpropanolamine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Phenylpropanolamine interactionAcetaminophen, Phenylpropanolamine, PhenyltoloxamineSinubid
How Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Phenylpropanolamine, Phenyltoloxamine interactionAcetaminophen, PhenyltoloxaminePercogesic, Relagesic
How Acetaminophen, Phenyltoloxamine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Phenyltoloxamine interactionAcetaminophen, Phenyltoloxamine, SalicylamideLobac
How Acetaminophen, Phenyltoloxamine, Salicylamide interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Phenyltoloxamine, Salicylamide interactionAcetaminophen, PropoxypheneDarvocet-N 100, Darvocet-N 50, E-Lor, Wygesic
How Acetaminophen, Propoxyphene interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Propoxyphene interactionAcetaminophen, PseudoephedrineChildren's Tylenol Sinus, Dristan N.D., Non-Aspirin Sinus, Ornex, Ornex-Max, Sinutab +5 more
How Acetaminophen, Pseudoephedrine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Pseudoephedrine interactionAcetaminophen, Pseudoephedrine, TriprolidineActifed Plus ES
How Acetaminophen, Pseudoephedrine, Triprolidine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetaminophen, Pseudoephedrine, Triprolidine interactionAcetazolamideAk-Zol, Diamox
How Acetazolamide interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetazolamide interactionAcetohexamideDymelor
How Acetohexamide interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetohexamide interactionAcetohydroxamic AcidLithostat
How Acetohydroxamic Acid interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetohydroxamic Acid interactionAcetophenazineTindal
How Acetophenazine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetophenazine interactionAcetylcholineMiochol-E
How Acetylcholine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetylcholine interactionAcetylcysteine (prescription Drug)Cetylev, Legubeti
How Acetylcysteine (prescription Drug) interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetylcysteine (prescription Drug) interactionAcetylsalicylic AcidEntrophen
How Acetylsalicylic Acid interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acetylsalicylic Acid interactionAcitretinSoriatane
How Acitretin interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acitretin interactionAcrivastine, PseudoephedrineSemprex D
How Acrivastine, Pseudoephedrine interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acrivastine, Pseudoephedrine interactionAcyclovirAvaclyr, Sitavig, Zovirax, Zovirax Injection
How Acyclovir interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Acyclovir interactionAdagrasibKrazati
How Adagrasib interacts with Multi-Probiotic 15 Billion — through 1 ingredient. Tap an ingredient for the detail:
Ulmus FulvaOral Drugs Moderate
Interaction Summary
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Read the full Ulmus Fulva + Adagrasib interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Multi-Probiotic 15 Billion 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.
Ulmus fulva
Oral Drugs
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Slippery elm inner bark contains mucilage, which may interfere with the absorption of orally administered drugs.
Bifidobacterium longum (Bl-05)
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.
Lactobacillus acidophilus (DDS-1)
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.
Lactobacillus gasserri (Lg-36)
Antibiotic Drugs
Theoretically, taking Lactobacillus gasseri with antibiotic drugs might decrease the effectiveness of L. gasseri.
Lactobacillus gasseri 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. gasseri preparations by at least two hours.
Brand information
Manufacturer and brand details for Multi-Probiotic 15 Billion, from the product label.
Douglas Laboratories
See all Douglas Laboratories products- Name
- Douglas Laboratories
- Street Address
- 600 Boyce Road
- City
- Pittsburgh
- State
- PA
- ZipCode
- 15205
- Phone Number
- 1.800.245.4440
- Web Address
- www.douglaslabs.com
Multi-Probiotic 15 Billion by Douglas Laboratories: Common Questions
Does Multi-Probiotic 15 Billion by Douglas Laboratories interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this with my antibiotics?
Is this safe if I'm pregnant or breastfeeding?
Will this help my digestion?
What are the side effects?
Should I take this if I have a weakened immune system?
What's slippery elm in here for?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Multi-Probiotic 15 Billion is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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 Multi-Probiotic 15 Billion’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Slippery Elm
Interacts with 2,022 drugsSlippery elm is a traditional herbal remedy made from the inner bark of a North American elm tree, used mainly to soothe sore throats and irritated digestive tracts. Its mucilage can coat an...
Read the full Slippery Elm monograph → Herb & supplement monographBifidobacterium 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 monographStreptococcus Thermophilus
Streptococcus thermophilus is a friendly bacterium used as a probiotic, often combined with other strains in yogurt and supplements. It is generally well tolerated in healthy people and may...
Read the full Streptococcus Thermophilus 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 → Herb & supplement monographLactobacillus Gasseri
Interacts with 182 drugsLactobacillus gasseri is a 'friendly' probiotic bacterium found naturally in the human gut, mouth, and vaginal tract, and in some fermented foods. Early research suggests it may help with di...
Read the full Lactobacillus Gasseri monograph →Sources & How We Checked
Multi-Probiotic 15 Billion'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 72 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.
Slippery Elm 3 references
- The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
- Czarnecki D, Nixon R, Bekhor P, and et al. Delayed prolonged contact urticaria from the elm tree. Contact Dermatitis 1993;28:196-197. PubMed
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
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Streptococcus Thermophilus 21 references
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Lactobacillus Acidophilus 15 references
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Lactobacillus Gasseri 12 references
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See these in context on the Lactobacillus Gasseri monograph →
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