Interactions on record — worth a quick check against your medications. Based on 4 of 6 ingredients. Check your meds →
Dietary supplement

Probiotic Complex with Fiber Unflavored Ingredients & Drug Interactions

by GNC Probiotic

Probiotic Complex with Fiber Unflavored label
See full label image
Powder Category: Other Combinations
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

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

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

The interaction bottom line Most serious interaction: Moderate

Probiotic Complex with Fiber Unflavored is a dietary supplement by GNC Probiotic with 6 active ingredients. Its ingredients are commonly taken for constipation, diarrhea, high cholesterol.Based on those ingredients, 2,083 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Dietary Fiber, Bifidobacterium bifidum (CUL 20), Lactobacillus acidophilus (CUL 60). Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Probiotic Complex with Fiber Unflavored by GNC Probiotic

Ask about any prescription or over-the-counter medication and we check it for interactions with Probiotic Complex with Fiber Unflavored by GNC Probiotic — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
Prefer a human? Send your question to our licensed pharmacists — free, answered by email within 24 hours.

HelloPharmacist Scorecard of Probiotic Complex with Fiber Unflavored by GNC Probiotic

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

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 3, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 2 of its 6 active ingredients.
  • “LAB4 Probiotics” is listed as a grouped ingredient — the label doesn't break down how much of each component you get.

This powder contains 5 active ingredients: four live probiotic bacterial strains (Bifidobacterium bifidum, two Lactobacillus acidophilus strains, and Bifidobacterium animalis subsp. lactis) plus BiMuno B-Gos Galactooligosaccharides — a prebiotic fiber that feeds beneficial gut bacteria. The probiotics are meant to help restore or maintain healthy gut flora.

Two inactive ingredients — Sunfiber and potato maltodextrin — round out the formulation as a carrier and binder.

Does it work?

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

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: digestive health and regularity support.
  • We looked for evidence on: Antibiotic-associated diarrhea, Constipation, Diarrhea, Irritable bowel syndrome (IBS), Lactose intolerance, bloating — and 2 related terms.
  • The strongest evidence on file: Black Psyllium is rated "Effective" for Constipation (Natural Medicines).
  • Also on file: Lactobacillus Acidophilus is rated "Possibly Effective" for Antibiotic-associated diarrhea, Irritable bowel syndrome (IBS).
  • Also on file: Bifidobacterium Animalis Subsp. Lactis is rated "Possibly Effective" for Constipation, Irritable bowel syndrome (IBS).

The four probiotic strains show "Possibly Effective" evidence for irritable bowel syndrome (IBS) and respiratory tract infections. Lactobacillus acidophilus also carries "Possibly Effective" ratings for Helicobacter pylori infection, antibiotic-associated diarrhea, and bacterial vaginosis.

Bifidobacterium animalis subsp. lactis is rated "Possibly Effective" for constipation as well. For other conditions — allergies, anxiety, Alzheimer disease — the evidence isn't established in our data.

Effectiveness for BiMuno B-Gos itself isn't included in the facts we hold.

The evidence, ingredient by ingredient Black Psyllium Bifidobacterium Bifidum Lactobacillus Acidophilus Bifidobacterium Animalis Subsp. Lactis

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

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

Why this rating?
  • We hold adverse-effect (side-effect) data for 4 of the 4 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 4 of 4.
  • General safety write-ups exist for 4 of 4.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

All four probiotic strains are generally well tolerated in healthy adults and children. Those with weakened immune systems should be cautious.

The most common side effect is mild gastrointestinal discomfort — bloating, flatulence, diarrhea, and abdominal pain can occur, though these events are uncommon. One case of vomiting and fever was reported in a child taking both Bifidobacterium bifidum and Lactobacillus acidophilus together, though it's unclear if the probiotics caused it.

Rare serious infections (sepsis, bacteremia) have been reported with Lactobacillus acidophilus, but these cases appear to be from bacteria spreading from elsewhere in the body, not from typical oral use. Bifidobacterium bifidum and Lactobacillus acidophilus are rated "Possibly Safe" in pregnancy; lactation data isn't on file for these strains.

For Bifidobacterium animalis subsp. lactis, pregnancy and lactation safety data aren't on file. Talk with your doctor or pharmacist before using if you're pregnant or breastfeeding.

Side effects, ingredient by ingredient Black Psyllium Bifidobacterium Bifidum Lactobacillus Acidophilus Bifidobacterium Animalis Subsp. Lactis

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 4 of the 4 matched ingredients can interact with medications — Black Psyllium, Lactobacillus Acidophilus, Bifidobacterium Animalis Subsp. Lactis, Bifidobacterium Bifidum.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: heart-rhythm medications; lithium.
  • For scale: 2,084 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Separate antibiotic drugs (Moderate severity) from this product by a few hours — antibiotics will kill the live probiotics, making them ineffective. Check with your doctor or pharmacist about the right timing for your specific antibiotic.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This probiotic may help if you have IBS, respiratory infections, or antibiotic-related diarrhea, or if you're managing constipation or bacterial vaginosis. The main thing to watch: don't take it at the same time as antibiotics — they'll kill the good bacteria you're trying to add.

If you take antibiotics regularly or have a weakened immune system, check with your doctor or pharmacist before starting.

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

Assessment coverage: 5 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Feb 25, 2021.

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

At a glance

General information

Key facts about Probiotic Complex with Fiber Unflavored, straight from the product label.

Brand GNC Probiotic
Barcode (UPC) 048107196622
Net contents 11.11 Ounce(s); 315 Gram(s)
Market status On market
Date entered into DSLD Feb 25, 2021
DSLD ID 243524
Product type Other Combinations
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Probiotic Complex with Fiber Unflavored by GNC Probiotic, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
10.5 Gram(s)
Maximum serving Sizes:
10.5 Gram(s)
Servings per container
30
UPC/BARCODE
048107196622
IngredientAmount% DV
Calories40 Calorie(s)--
Total Carbohydrates10 Gram(s)4%
Dietary Fiber6 Gram(s)21%
Total Sugars1 Gram(s)--
Bifidobacterium bifidum (CUL 20)0 NP--
Lactobacillus acidophilus (CUL 60)0 NP--
Lactobacillus acidophilus (CUL 21)0 NP--
Bifidobacterium animalis subsp. lactis (CUL 34)0 NP--
BiMuno B-Gos Galactooligosaccharides1.37 Gram(s)--
LAB4 Probiotics0 NP--

Other ingredients: Sunfiber, Potato Maltodextrin

Tap any ingredient to jump to its full detail below.

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

Why GNC Probiotic complex with fiber? Multiple strains of live, active probiotic cultures SunFiber clinically proven to support regularity and growth of beneficial bacteria Bimuno prebiotic clinically shown to support improvements in bloating and digestive comfort in as few as 7 days

12.5 Billion CFUs Bimuno prebiotic clinically shown to support improvements in bloating and digestive comfort in as few as 7 days. 12.5 Billion active cultures

Formulation

May provide immune support Guaranteed potency through expiration date

Gluten free

In a randomized, double-blind, placebo-controlled, crossover trial, where 91 individuals took a daily dose of 1.37 g B-GOS and placebo for 14 days each, during which B-GOS subjects experienced statistically significant improvements in digestive support at both the 7- and 14- day time points, compared to placebo.

Made in the UK

Daily Use Potency guaranteed

GF Gluten Free

Guaranteed Potency Probiotic Complex with fiber has been tested to ensure the full 12.5 billion cultures in each dose are live and active when used by the expiration date.

Storage

No refrigeration necessary

Store in a cool, dry place. No refrigeration required.

Precautions

Keep out of reach of children.

Contains: Milk.

Warning: Do not use if you develop diarrhea, loose stools, or abdominal pain.

Consult your physician if you have frequent diarrhea or if you are pregnant, nursing, taking medication or have a medical condition.

Taking this product without enough liquid may cause choking.

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, mix two level scoops (10.5 g) with 6-8 fl. oz. of a cold beverage. Can also be sprinkled over cereal or stirred into yogurt. For maximum benefits take two servings daily.

General Statements

Notice: Significant settling bay occur.

Brand IP Statement(s)

Bimuno and B-GOS are registered trademarks of Clasado IP Limited and are protected by patents 7,833,874, 8,058,047 and 8,030,049.. Sunfiber is a registered trademark of Taiyo International, Inc. Use of Sunfiber is protected by US Trademark Registration No. 2,930,937.

FDA Disclaimer Statement

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

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

See for yourself

Probiotic Complex with Fiber Unflavored by GNC Probiotic label

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

Probiotic Complex with Fiber Unflavored label

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

View the full label (PDF)
What’s inside

The Ingredients in Probiotic Complex with Fiber Unflavored by GNC Probiotic

These are the 6 active ingredients this product is made of. Select any to open its full monograph.

Serving size10.5 Gram(s) Dosage formPowder 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.

Dietary Fiber

Interacts with
2,025 drugs
6 Gram(s) per serving

Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. I...

Dietary Fiber monograph & interactions

BiMuno B-Gos Galactooligosaccharides

1.37 Gram(s) per serving

Other (inactive) ingredients: Sunfiber, Potato Maltodextrin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Probiotic Complex with Fiber Unflavored by GNC Probiotic Drug Interactions

Want to check YOUR meds against Probiotic Complex with Fiber Unflavored?

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

 Go to the checker
2,083Drugs
205 Moderate 1,878 Minor

Ingredients driving the most interactions

Dietary Fiber 2,025
Bifidobacterium bifidum (CUL 20) 182
Lactobacillus acidophilus (CUL 60) 182
Bifidobacterium animalis subsp. lactis (CUL 34) 182

Individual Drug Interactions

The ingredients in Probiotic Complex with Fiber Unflavored interact with 2,083 drugs. Click any drug to see the details.

4 of the 6 ingredients in Probiotic Complex with Fiber Unflavored interact with drugs. Each result below shows which ingredient is responsible. Dietary Fiber Bifidobacterium bifidum (CUL 20) Lactobacillus acidophilus (CUL 60) Bifidobacterium animalis subsp. lactis (CUL 34)

Each ingredient & the kinds of drugs it affects

For each ingredient in Probiotic Complex with Fiber Unflavored 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.

Dietary Fiber7 drug types · 2,025 drugs

Carbamazepine (Tegretol)

Theoretically, black psyllium might reduce the effects of carbamazepine and increase the risk for convulsions.
Theoretically, black psyllium might reduce carbamazepine absorption. A preliminary study using blond psyllium reported decreased carbamazepine bioavailability due to binding of the drug to psyllium, as well as reduction of available fluid in the gut for dissolution of the drug. This interaction may also occur with black psyllium.

Likelihood Probable Evidence D
Lithium

Theoretically, taking black psyllium at the same time as lithium might reduce lithium absorption.
The fiber in black psyllium might reduce lithium absorption and plasma levels. Some case reports describe a reduction in plasma lithium levels with concomitant administration of blond psyllium. This was reversed when psyllium was stopped. This interaction may also occur with black psyllium.

Likelihood Probable Evidence D
Metformin (Glucophage)

Theoretically, black psyllium might increase the therapeutic and adverse effects of metformin.
Animal research shows that concurrent consumption of blond psyllium with metformin slows and increases the absorption of metformin. This interaction may also occur with black psyllium. To avoid changes in absorption, take psyllium 30-60 minutes after metformin.

Likelihood Possible Evidence D
Olanzapine (Zyprexa)

Theoretically, taking black psyllium at the same time as olanzapine might reduce olanzapine absorption.
The fiber in black psyllium might decrease the absorption of olanzapine. A single case report describes a reduction in the effectiveness of olanzapine when it was concomitantly administered with an unspecified type of psyllium 3 grams orally twice daily. This effect was reversed when psyllium was stopped.

Likelihood Possible Evidence D
Digoxin (Lanoxin)

Theoretically, taking black psyllium at the same time as digoxin might reduce digoxin absorption and decrease digoxin levels.
Psyllium might bind digoxin in the gut. However, some clinical evidence suggests that psyllium does not impact digoxin absorption.

Likelihood Unlikely Evidence B
Ethinyl Estradiol

Theoretically, taking black psyllium at the same time as ethinyl estradiol might alter levels of estradiol.
Concurrent use of blond psyllium with ethinyl estradiol results in a slight increase in the extent of ethinyl estradiol absorption and a slower rate of absorption. This is unlikely to be clinically significant.

Likelihood Unlikely Evidence D
Oral Drugs

Theoretically, psyllium might increase, decrease, or have no effect on the absorption of oral drugs.
Psyllium seems to have variable effects on drug absorption. To avoid changes in absorption, take psyllium 30-60 minutes after oral medications. Animal research shows that blond psyllium delays and increases the absorption of metformin and ethinyl estradiol. Case reports and animal research suggest that blond psyllium might reduce absorption of lithium, digoxin, olanzapine, and carbamazepine. Finally, some pharmacokinetic studies show that psyllium does not affect the absorption of levothyroxine or warfarin. Although many of these studies evaluated blond psyllium, the fiber content in black psyllium may have similar effects.

Likelihood Possible Evidence B
Dietary Fiber full monograph & interactions

Bifidobacterium bifidum (CUL 20)1 drug type · 182 drugs

Antibiotic Drugs

Theoretically, taking Bifidobacterium. bifidum with antibiotic drugs might decrease the effectiveness of B. bifidum.
Since B. bifidum 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. bifidum preparations by at least 2 hours.

Likelihood Probable Evidence D
Bifidobacterium bifidum (CUL 20) full monograph & interactions

Lactobacillus acidophilus (CUL 60)1 drug type · 182 drugs

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.

Likelihood Probable Evidence D
Lactobacillus acidophilus (CUL 60) full monograph & interactions

Bifidobacterium animalis subsp. lactis (CUL 34)1 drug type · 182 drugs

Antibiotic Drugs

Theoretically, taking Bifidobacterium lactis with antibiotic drugs might decrease the effectiveness of B. lactis.
Since B. lactis 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. lactis preparations by at least 2 hours.

Likelihood Probable Evidence D
Bifidobacterium animalis subsp. lactis (CUL 34) full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Probiotic Complex with Fiber Unflavored, from the product label.

GNC Probiotic

See all GNC Probiotic products
Name
General Nutrition Corporation
City
Pittsburgh
State
PA
ZipCode
15222
Phone Number
1-888-462-2548
Web Address
gnc.com
Pharmacist Counseling Corner

Probiotic Complex with Fiber Unflavored by GNC Probiotic: Common Questions

Does Probiotic Complex with Fiber Unflavored by GNC Probiotic interact with any medications?
Yes. Based on its ingredients, Probiotic Complex with Fiber Unflavored has a known interaction with 2,083 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Probiotic Complex with Fiber Unflavored contains 6 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this while I'm on antibiotics?
Not at the same time. Antibiotics will kill the live bacteria in this powder, so you won't get the benefit. Space them out — ask your doctor or pharmacist how many hours apart. Once you finish antibiotics, this product may actually help restore the good bacteria antibiotics can wipe out.
What's the difference between the two Lactobacillus acidophilus strains in here?
Both are different strains (CUL 60 and CUL 21) of the same species. They have the same effects and safety profile, so having both gives you more diversity of beneficial bacteria — that's generally a good thing in a probiotic blend.
Will this give me gas or bloating?
It can. Bloating and flatulence are uncommon but possible, especially when you first start probiotics. Gastrointestinal side effects like diarrhea, abdominal pain, or burping also happen, though they're rare. If they persist or worsen, stop and talk to your doctor.
Is this safe if my immune system is weak?
The safety data advises caution if your immune system is compromised — probiotics carry a theoretical risk in that situation. Talk with your doctor before taking it; they know your specific health picture best.
Can I take this if I'm pregnant or breastfeeding?
For Bifidobacterium bifidum and Lactobacillus acidophilus, the rating is "Possibly Safe" in pregnancy, but lactation safety data isn't on file. For Bifidobacterium animalis subsp. lactis, we don't have enough data either way. Discuss with your doctor or pharmacist to weigh the benefits and risks for your situation.
What does the BiMuno B-Gos do?
It's a prebiotic fiber — fuel for the good bacteria already in your gut and the probiotics you're taking. Prebiotics and probiotics work together to support digestive health.

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

Not sure if Probiotic Complex with Fiber Unflavored is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Probiotic Complex with Fiber Unflavored label
Go deeper

The Full Monographs Behind Probiotic Complex with Fiber Unflavored’s Ingredients

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

Herb & supplement monograph

Black Psyllium

Interacts with 2,025 drugs

Black psyllium is a soluble-fiber supplement made from the seeds of a Plantago plant, used mostly to ease constipation and support digestive health. It is best known and most studied for rel...

Read the full Black Psyllium monograph → Herb & supplement monograph

Bifidobacterium Bifidum

Interacts with 182 drugs

Bifidobacterium bifidum is a 'friendly' bacteria (probiotic) that naturally lives in the human gut and is taken to support digestion and gut balance. Some evidence suggests probiotics may he...

Read the full Bifidobacterium Bifidum monograph → Herb & supplement monograph

Lactobacillus Acidophilus

Interacts with 182 drugs

Lactobacillus 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 monograph

Bifidobacterium Animalis Subsp. Lactis

Interacts with 182 drugs

Bifidobacterium animalis subsp. lactis is a well-studied probiotic bacterium commonly added to supplements and yogurts to support digestion and gut health. It appears generally safe for most...

Read the full Bifidobacterium Animalis Subsp. Lactis monograph →
Sources

Sources & How We Checked

Probiotic Complex with Fiber Unflavored's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

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

The 48 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.

Black Psyllium 18 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  3. Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.
  4. Etman M. Effect of a bulk forming laxative on the bioavailablility of carbamazepine in man. Drug Dev Ind Pharm 1995;21:1901-6.
  5. Perlman BB. Interaction between lithium salts and ispaghula husk. Lancet 1990;335:416.
  6. Vaswani SK, Hamilton RG, Valentine MD, Adkinson NF. Psyllium laxative-induced anaphylaxis, asthma, and rhinitis. Allergy 1996;51:266-8. PubMed
  7. Lantner RR, Espiritu BR, Zumerchik P, Tobin MC. Anaphylaxis following ingestion of a psyllium-containing cereal. JAMA 1990;264:2534-6. DOI
  8. Kaplan MJ. Anaphylactic reaction to "Heartwise." N Engl J Med 1990;323:1072-3. DOI
  9. Nordstrom M, Melander A, Robertsson E, Steen B. Influence of wheat bran and of a bulk-forming ispaghula cathartic on the bioavailability of digoxin in geriatric in-patients. Drug Nutr Interact 1987;5:67-9..
  10. Robinson DS, Benjamin DM, McCormack JJ. Interaction of warfarin and nonsystemic gastrointestinal drugs. Clin Pharmacol Ther 1971;12:491-5. PubMed
  11. Garcia JJ, Fernandez N, Diez MJ, et al. Influence of two dietary fibers in the oral bioavailability and other pharmacokinetic parameters of ethinyloestradiol. Contraception 2000;62:253-7. PubMed
  12. Fernandez N, Lopez C, Díez R, et al. Drug interactions with the dietary fiber Plantago ovata husk. Expert Opin Drug Metab Toxicol 2012;8(11):1377-86.
  13. Semen plantaginis in: WHO Monographs on Selected Medicinal Plants, volume 1. World Health Organization, Geneva, 1999. Available at http://apps.who.int/medicinedocs/en/d/Js2200e/. Accessed November 26, 1026.
  14. Code of Federal Regulations, Title 21 (21CFR 101.17). Food labeling warning, notice, and safe handling statements. Available at www.ecfr.gov/cgi-bin/text-idx?SID=20f647d3b74161501f46564b915b4048&mc=true&node=se21.2.101_117&rgn=div8. Accessed December 3, 2
  15. Code of Federal Regulations, Title 21 (21CFR 201.319). Specific labeling requirements - water-soluble gums, hydrophilic gums, and hydrophilic mucilloids. Available at www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=201.319. Accessed Dece
  16. Diez R, Garcia JJ, Diez MJ, Sierra M, Sahagun AM, Fernandez N. Influence of Plantago ovata husk (dietary fiber) on the bioavailability and other pharmacokinetic parameters of metformin in diabetic rabbits. BMC Complement Altern Med. 2017 Jun 7;17(1):298. PubMed
  17. Chiu AC, Sherman SI. Effects of pharmacological fiber supplements on levothyroxine absorption. Thyroid. 1998;8(8):667-71. PubMed
  18. Merrick C, Madden CA, Capurso NA. A Case of Blunted Orally Disintegrating Olanzapine Effect Due to Coadministered Psyllium. J Clin Psychiatry 2021;82(2):20cr13633. PubMed

See these in context on the Black Psyllium monograph →

Bifidobacterium Bifidum 7 references
  1. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. 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
  3. Rerksuppaphol S, Rerksuppaphol L. Randomized controlled trial of probiotics to reduce common cold in schoolchildren. Pediatr Int. 2012;54(5):682-7. PubMed
  4. 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
  5. 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.
  6. 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.
  7. 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

See these in context on the Bifidobacterium Bifidum monograph →

Lactobacillus Acidophilus 15 references
  1. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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.
  7. 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
  8. 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
  9. 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.
  10. 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
  11. Ozer M, Goksu SY, Shahverdiani A, Mustafa M. Lactobacillus acidophilus-induced endocarditis and associated splenic abscess. Case Rep Infect Dis 2020;2020:1382709.
  12. 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
  13. 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
  14. 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.
  15. 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 →

Bifidobacterium Animalis Subsp. Lactis 8 references
  1. Pierce A. The American Pharmaceutical Association Practical Guide to Natural Medicines. New York: The Stonesong Press, 1999:19.
  2. Phuapradit P, Varavithya W, Vathanophas K, et al. Reduction of rotavirus infection in children receiving bifidobacteria-supplemented formula. J Med Assoc Thai 1999;82:S43-8.
  3. 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
  4. 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
  5. Taipale TJ, Pienihäkkinen K, Isolauri E, Jokela JT, Söderling EM. Bifidobacterium animalis subsp. lactis BB-12 in reducing the risk of infections in early childhood. Pediatr Res. 2016;79(1-1):65-9. PubMed
  6. Amat-Bou M, Garcia-Ribera S, Climent E, et al. Effects of Bifidobacterium animalis Subsp. lactis (BPL1) supplementation in children and adolescents with prader-willi syndrome: A randomized crossover trial. Nutrients. 2020;12(10):3123. PubMed
  7. Mäkelä SM, Forssten SD, Kailajärvi M, et al. Effects of Bifidobacterium animalis ssp. lactis 420 on gastrointestinal inflammation induced by a nonsteroidal anti-inflammatory drug: A randomized, placebo-controlled, double-blind clinical trial. Br J Clin Ph
  8. Wildt S, Munck LK, Vinter-Jensen L, et al. Probiotic treatment of collagenous colitis: a randomized, double-blind, placebo-controlled trial with Lactobacillus acidophilus and Bifidobacterium animalis subsp. Lactis. Inflamm Bowel Dis 2006;12(5):395-401. PubMed

See these in context on the Bifidobacterium Animalis Subsp. Lactis 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

Keep exploring
Supplement interaction checker › Check any supplement or product against your medications Drug–drug interactions › Check two or more of your medications against each other Browse medications A–Z › Every drug we've checked against herbs & supplements NDC & pricing lookup › Find a drug’s NDCs, packaging and costs Ask a pharmacist › Free, personal answer from our licensed team