Interactions on record — worth a quick check against your medications. Based on 2 of 4 ingredients. Check your meds →
Dietary supplement

Probiotic Ingredients & Drug Interactions

by femMED

Probiotic label
See full label image
Capsule Category: Non-nutrient/non-botanical
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 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 is a dietary supplement by femMED with 4 active ingredients. Its ingredients are commonly taken for digestive health and balance, diarrhea (including antibiotic-related), vaginal yeast and bacterial infections.Based on those ingredients, 182 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Lactobacillus acidophilus UALa-01, Bifidobacterium breve UABB-11. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Probiotic by femMED

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

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HelloPharmacist Scorecard of Probiotic by femMED

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 Jul 11, 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 0 of its 4 active ingredients.

This product contains four active probiotic strains — beneficial bacteria meant to support gut health. Two of them are Lactobacillus species (rhamnosus GG and acidophilus), and two are Bifidobacterium species (animalis lactis and breve).

The capsule also holds inactive ingredients like cellulose, magnesium stearate, and several forms of carbohydrate (maltodextrin, dextrose, sucrose, trehalose) that help stabilize the live organisms.

Does it work?

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

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

Why this rating?
  • The label markets this product for: gastrointestinal health.
  • We looked for evidence on: Antibiotic-associated diarrhea, Colic, Constipation, Inflammatory bowel disease (IBD), Irritable bowel syndrome (IBS), Lactose intolerance — and 4 related terms.
  • The strongest evidence on file: Lactobacillus Acidophilus is rated "Possibly Effective" for Antibiotic-associated diarrhea (Natural Medicines).
  • Also on file: Lactobacillus Acidophilus is rated "Possibly Effective" for Irritable bowel syndrome (IBS).
  • Also on file: Lactobacillus Acidophilus is rated "Insufficient Reliable Evidence To Rate" for Constipation, Inflammatory bowel disease (IBD), Radiation-induced diarrhea, Lactose intolerance, and more.

The evidence for L. acidophilus points toward possible benefit for irritable bowel syndrome (IBS), antibiotic-associated diarrhea, Helicobacter pylori infection, and bacterial vaginosis. For B. breve, the data we hold don't show enough evidence to rate it for the conditions listed — mostly because the research isn't complete yet.

If you're taking this for a specific condition, your pharmacist or doctor can tell you what the current science supports.

The evidence, ingredient by ingredient Lactobacillus Acidophilus Bifidobacterium Breve

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 2 of the 2 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 2 of 2.
  • General safety write-ups exist for 2 of 2.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

L. acidophilus is generally well tolerated in healthy adults and children. In rare cases, the live bacteria have been linked to serious infections like sepsis or endocarditis, but this appears to happen almost entirely in people who are already very ill or have weakened immune systems.

B. breve also needs caution in critically ill or immunocompromised people; rare cases of bloodstream infection have been reported in that population. Gastrointestinal side effects like bloating, gas, and mild stomach pain can occur when you first start a probiotic, but they're uncommon.

No pregnancy or breastfeeding safety data are on file for either ingredient — talk to your doctor or pharmacist before use if you're pregnant or nursing.

Side effects, ingredient by ingredient Lactobacillus Acidophilus Bifidobacterium Breve

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?
  • 2 of the 2 matched ingredients can interact with medications — Lactobacillus Acidophilus, Bifidobacterium Breve.
  • The most serious interaction on file is rated Moderate.
  • For scale: 182 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

If you take antibiotic drugs, separate them from this probiotic by several hours so the antibiotics don't kill the beneficial bacteria before they colonize. This spans a large number of individual medications across both Lactobacillus acidophilus and Bifidobacterium breve.

Altogether, these interactions span 182 individual medications.

Check your own medication Run your meds through the checker above

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.

femMED Probiotic is a four-strain formula that may help with IBS, antibiotic-related diarrhea, and other gut concerns — especially if you have reasonable immune health. If you take antibiotics, space them away from this product.

If you're very ill, immunocompromised, pregnant, or nursing, check with your doctor first.

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 Dec 21, 2024.

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, straight from the product label.

Brand femMED
Barcode (UPC) 629204000120
Net contents 60 Vegetable Capsule(s)
Market status On market
Date entered into DSLD Dec 21, 2024
DSLD ID 323194
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult Female (18 - 50 Years), Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Probiotic by femMED, 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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
30
UPC/BARCODE
629204000120
IngredientAmount% DV
Lactobacillus rhamnosus GG0 NP--
Lactobacillus acidophilus UALa-010 NP--
Bifidobacterium animalis lactis UABLA-120 NP--
Bifidobacterium breve UABB-110 NP--

Other ingredients: Hypromellose, Cellulose, Magnesium Stearate, Silica, Rice Maltodextrin, Trehalose, Sodium Citrate, Dextrose, Sucrose, Magnesium Sulfate, Maltodextrin, L-Aspartic Acid

Tap any ingredient to jump to its full detail below.

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

Colony forming units (CFU).

Phone 905-813-7444 Fax 905-286-1444

NPN 80053671

Formulation

This product does not contain dairy, egg, gluten, soy, nuts, wheat, GMO, preservatives, artificial colours or flavours.

This product is vegetarian and not tested on animals.

Made in Canada. Promotes gastrointestinal health.

Brand IP Statement(s)

femMed is a registered trademark of / femMed Canada, Inc.

Formula

Probiotic is a therapeutic, multi-strain probiotic combination that is specifically formulated with 5 billion active cells to fortify the gastrointestinal tract with healthy bacteria. 5 billion active cells at manufacturing, guaranteed 1 billion active cells at expiration.

Storage

No refrigeration required.

Store in a cool, dry place.

Suggested/Recommended/Usage/Directions

Suggested Usage: Adults - take 2 capsules once daily. If you are taking antibiotics, take at least 2-3 hours before or after.

Precautions

Caution: Patients undergoing long-term corticosteroid treatment, and other people with immune-compromising conditions such as AIDS or lymphoma should not take this product. If you have fever, vomiting, bloody diarrhea, or severe abdominal pain, consult a health care practitioner prior to use. If symptoms of digestive upset (e.g. diarrhea) occur, worsen, or persist beyond three days, discontinue use and consult a health care practitioner.

Do not use this product if the safety seal is broken or missing.

Keep out of the reach of children.

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

See for yourself

Probiotic by femMED label

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

Probiotic 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 by femMED

These are the 4 active ingredients this product is made of. Select any to open its full monograph.

Serving size2 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Lactobacillus rhamnosus GG

0 NP per serving

Lactobacillus acidophilus UALa-01

Interacts with
182 drugs
0 NP per serving

Lactobacillus acidophilus is a 'friendly' bacterium used as a probiotic to support gut and vaginal health. It is generally well tolerated in healthy p...

Lactobacillus acidophilus UALa-01 monograph & interactions

Bifidobacterium animalis lactis UABLA-12

0 NP per serving

Bifidobacterium breve UABB-11

Interacts with
182 drugs
0 NP per serving

Bifidobacterium breve is a 'friendly' gut bacterium taken as a probiotic, most often to support digestion and balance the gut microbiome. Some studies...

Bifidobacterium breve UABB-11 monograph & interactions

Other (inactive) ingredients: Hypromellose, Cellulose, Magnesium Stearate, Silica, Rice Maltodextrin, Trehalose, Sodium Citrate, Dextrose, Sucrose, Magnesium Sulfate, Maltodextrin, L-Aspartic Acid. These complete the product’s ingredient list but are not active constituents.

Interaction report

Probiotic by femMED Drug Interactions

Want to check YOUR meds against Probiotic?

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
182Drugs
182 Moderate

Ingredients driving the most interactions

Lactobacillus acidophilus UALa-01 182
Bifidobacterium breve UABB-11 182

Individual Drug Interactions

The ingredients in Probiotic interact with 182 drugs. Click any drug to see the details.

2 of the 4 ingredients in Probiotic interact with drugs. Each result below shows which ingredient is responsible. Lactobacillus acidophilus UALa-01 Bifidobacterium breve UABB-11

Each ingredient & the kinds of drugs it affects

For each ingredient in Probiotic 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.

Lactobacillus acidophilus UALa-011 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 UALa-01 full monograph & interactions

Bifidobacterium breve UABB-111 drug type · 182 drugs

Antibiotic Drugs

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

Likelihood Probable Evidence D
Bifidobacterium breve UABB-11 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Probiotic, from the product label.

femMED

See all femMED products
Name
femMed Cananda, Inc.
Street Address
2850 Argentia Road, Unit #4
City
Mississauga
State
Ontario
ZipCode
L5N 8G4
Phone Number
1-866-799-8035
Web Address
femmed.ca
Pharmacist Counseling Corner

Probiotic by femMED: Common Questions

Does Probiotic by femMED interact with any medications?
Yes. Based on its ingredients, Probiotic has a known interaction with 182 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Probiotic contains 4 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 with my antibiotic?
You can, but timing matters. Since antibiotics kill bacteria — including the live ones in this probiotic — you'll want to space them apart. Ask your pharmacist exactly how many hours to leave between doses of your antibiotic and this product.
What are these bacteria supposed to do?
They're meant to support gut health. L. acidophilus has decent evidence for helping with IBS, antibiotic-related diarrhea, and a few other gut and vaginal concerns. We don't have enough data yet to know how well B. breve works for specific conditions.
Will I get gas or bloating when I start taking it?
You might — mild bloating, gas, and stomach discomfort can happen when you first introduce probiotics. These side effects are uncommon and often settle down. If they're bothersome, mention it to your pharmacist.
Is it safe if I'm pregnant or breastfeeding?
We don't have safety data on file for either strain in pregnancy or while nursing. Talk with your doctor or pharmacist to decide whether it's right for you in that situation.
What if I have a weak immune system — should I take this?
You should check with your doctor first. There have been rare cases of serious bacterial infection from probiotics in people who are very ill or immunocompromised, so this isn't a decision to make on your own.

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

Not sure if Probiotic is safe with your meds?

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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 label
Go deeper

The Full Monographs Behind Probiotic’s Ingredients

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

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 Breve

Interacts with 182 drugs

Bifidobacterium breve is a 'friendly' gut bacterium taken as a probiotic, most often to support digestion and balance the gut microbiome. Some studies suggest possible benefits for certain d...

Read the full Bifidobacterium Breve monograph →
Sources

Sources & How We Checked

Probiotic'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 24 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.

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 Breve 9 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. 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.
  4. Ohishi A, Takahashi S, Ito Y, et al. Bifidobacterium septicemia associated with postoperative probiotic therapy in a neonate with omphalocele. J Pediatr. 2010;156(4):679-81. PubMed
  5. Sakurai Y, Watanabe T, Miura Y, et al. Clinical and bacteriologic characteristics of six cases of Bifidobacterium breve bacteremia due to probiotic administration in the neonatal intensive care unit. Pediatr Infect Dis J 2022;41(1):62-65. PubMed
  6. 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
  7. Wakabayashi Y, Nakayama S, Yamamoto A, et al. First case of necrotizing fasciitis and bacteremia caused by Bifidobacteriumbreve. Anaerobe 2022;76:102613.
  8. Takeda Y, Ota K, Kondo A, et al. A case of necrotizing fasciitis caused by Bifidobacterium breve. IDCases 2022;31:e01667. PubMed
  9. Suwantarat N, Romagnoli M, Wakefield T, Carroll KC. Ventriculoperitoneal shunt infection caused by Bifidobacterium breve. Anaerobe 2014;28:1-3. PubMed

See these in context on the Bifidobacterium Breve monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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