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Dietary supplement

UltraFlora IB Ingredients & Drug Interactions

by Metagenics

UltraFlora IB label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking UltraFlora IB 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

UltraFlora IB is a dietary supplement by Metagenics with 1 active ingredient. 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 Probiotic Blend. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against UltraFlora IB by Metagenics

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

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HelloPharmacist Scorecard of UltraFlora IB by Metagenics

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 2 active ingredients.
  • “Probiotic Blend” is a proprietary blend — the label gives one combined amount (268.75 mg) without saying how much of each component you get.

UltraFlora IB contains 2 active ingredients: Lactobacillus acidophilus NCFM, a live probiotic strain, and Bifidobacterium lactis Bi-07, another live probiotic strain. These are packaged in a capsule with inactive ingredients including microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate, and silica.

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: Help address gastrointestinal symptoms and discomfort.
  • We looked for evidence on: Antibiotic-associated diarrhea, Clostridioides difficile infection, 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), Rotaviral diarrhea, Lactose intolerance, and more.

Lactobacillus acidophilus is possibly effective for irritable bowel syndrome (IBS), Helicobacter pylori infection, antibiotic-associated diarrhea, and bacterial vaginosis. It's rated possibly ineffective for atopic disease (allergic conditions).

For acute respiratory distress syndrome, the evidence isn't reliable enough to rate it. We hold no effectiveness data in our monographs for Bifidobacterium lactis Bi-07.

The evidence, ingredient by ingredient Lactobacillus Acidophilus

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Lactobacillus acidophilus is generally well tolerated in healthy adults and children. In rare cases, the live organisms can cause serious infections (bacteremia, sepsis, abscess, endocarditis) in certain patients, typically through translocation of bacteria that occur naturally in other parts of the body; most cases happen in people with compromised immunity or critical illness.

Mild gastrointestinal side effects—epigastric discomfort, abdominal pain, gas, bloating, diarrhea, vomiting, and burping—are uncommon when L. acidophilus is combined with other probiotics. A clinical trial reported two cases of rash and one of itching, though it's unclear whether these were due to L. acidophilus, other ingredients, or chance.

We hold no pregnancy or breastfeeding safety data for either ingredient on file.

Side effects, ingredient by ingredient Lactobacillus Acidophilus

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?
  • 1 of the 1 matched ingredient can interact with medications — Lactobacillus Acidophilus.
  • 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.

Antibiotic drugs (Moderate severity) — taking them at the same time as this product may reduce the probiotic's effectiveness. We could not check Bifidobacterium lactis Bi-07, so other interactions may exist for that ingredient.

Run your full medication list through the checker below.

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.

UltraFlora IB is a two-strain probiotic for digestive support, with modest evidence for IBS and antibiotic-associated diarrhea. If you take antibiotics, separate them from this supplement — ask your pharmacist or doctor exactly how far apart.

Check your medications with the tool on this page, especially if you have a weakened immune system, and talk with your provider before you start.

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

Assessment coverage: 1 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 23, 2023.

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 UltraFlora IB, straight from the product label.

Brand Metagenics
Barcode (UPC) 755571947123
Net contents 30 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD Aug 23, 2023
DSLD ID 295879
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegetarian, Adult (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 UltraFlora IB by Metagenics, 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:
1 Vegetarian Capsule(s)
Maximum serving Sizes:
1 Vegetarian Capsule(s)
Servings per container
30
UPC/BARCODE
755571947123
IngredientAmount% DV
Lactobacillus acidophilus NCFM0 NP--
Probiotic Blend268.75 mg--
Bifidobacterium lactis Bi-070 NP--

Other ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Magnesium Stearate, Silica

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

UltraFlora IB is a clinically tested blend of "friendly" bacteria in a dairy free base. This advanced formula is designed to help address gastrointestinal symptoms such as abdominal discomfort, bloating, cramping, and occasional urgency.

General Statements

Visit WhyUltraFlora.com for more information.

Suggested/Recommended/Usage/Directions

Directions: Take one capsule one to two times daily or as directed by your healthcare practitioner.

Formulation

UltraFlora IB is a clinically tested blend of "friendly" bacteria in a dairy free base. This product is non-GMO, gluten-free, and vegetarian.

This product is non-GMO, gluten-free, and vegetarian.

Certified Gluten Free GFCO.org

Targeted relief for occasional intestinal distress

Storage

Storage: For best results, store in a cool dry place or keep refrigerated.

Precautions

Tamper Evident: Do not use if safety seal is missing or broken.

Practitioner Exclusive

Seals/Symbols

Certified Gluten Free GFCO.org

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.

FDA Statement of Identity

Probiotic Supplement

Brand IP Statement(s)

Bi-07 and NCFM are registered or licensed trademarks of International Flavors & Fragrances Inc. and are used under license

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

See for yourself

UltraFlora IB by Metagenics label

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

UltraFlora IB 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 UltraFlora IB by Metagenics

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Vegetarian Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Probiotic Blend

Interacts with
182 drugs
268.75 mg 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...

Probiotic Blend monograph & interactions

Other (inactive) ingredients: Microcrystalline Cellulose, Hydroxypropyl Methylcellulose, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

UltraFlora IB by Metagenics Drug Interactions

Want to check YOUR meds against UltraFlora IB?

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

Probiotic Blend 182

Individual Drug Interactions

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

1 of the 1 ingredient in UltraFlora IB interact with drugs. Each result below shows which ingredient is responsible. Probiotic Blend

Each ingredient & the kinds of drugs it affects

For each ingredient in UltraFlora IB with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Probiotic Blend1 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
Probiotic Blend full monograph & interactions
The maker

Brand information

Manufacturer and brand details for UltraFlora IB, from the product label.

Metagenics

See all Metagenics products
Name
Metagenics
City
Gig Harbor
State
WA
ZipCode
98332
Phone Number
800 692 9400
Web Address
metagenics.com
Pharmacist Counseling Corner

UltraFlora IB by Metagenics: Common Questions

Does UltraFlora IB by Metagenics interact with any medications?
Yes. Based on its ingredients, UltraFlora IB 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?
UltraFlora IB contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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 antibiotics?
No — taking them together can reduce how well the probiotic works, since antibiotics kill the live organisms in the supplement. Ask your pharmacist how long to wait between doses. The timing matters, so don't skip this step.
What's the difference between the two probiotics in this?
Lactobacillus acidophilus and Bifidobacterium lactis are two different beneficial bacteria strains. L. acidophilus is possibly effective for IBS, antibiotic-associated diarrhea, and a few other conditions. We don't have effectiveness data for B. lactis Bi-07 on file.
Are there any side effects?
Most people tolerate it well. Mild gas, bloating, or digestive discomfort can happen, but it's uncommon. In rare cases, live probiotics can cause serious infection in people with very weak immune systems — talk to your doctor if that's you.
Can I take this while pregnant or breastfeeding?
We don't have pregnancy or breastfeeding safety data for either ingredient in our files. Talk with your doctor or pharmacist before using it during pregnancy or while nursing.
Does it have any fillers?
Yes — the capsule contains microcrystalline cellulose, hydroxypropyl methylcellulose, magnesium stearate, and silica as inactive ingredients.

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

Not sure if UltraFlora IB 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.

UltraFlora IB label
Go deeper

The Full Monographs Behind UltraFlora IB’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 →
Sources

Sources & How We Checked

UltraFlora IB'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 15 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 →

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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