Interactions on record — worth a quick check against your medications. Based on 2 of 6 ingredients. Check your meds →
Dietary supplement

Fungus Defend Max Ingredients & Drug Interactions

by Justified Laboratories

Fungus Defend Max label
See full label image
Capsule 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 Fungus Defend Max 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

Fungus Defend Max is a dietary supplement by Justified Laboratories with 6 active ingredients. Its ingredients are commonly taken for digestive and gut health, prebiotic to support good bacteria, constipation relief.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 LA-14. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Fungus Defend Max by Justified Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with Fungus Defend Max by Justified Laboratories — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Fungus Defend Max by Justified 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.

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 6 active ingredients.
  • “MAKTREK Proprietary Blend of Probiotic Bacteria” is a proprietary blend — the label doesn't break down how much of each component you get.

Fungus Defend Max has 6 active ingredients. The main ones are probiotics — live beneficial bacteria strains including Lactobacillus acidophilus LA-14, Lactobacillus paracasei LPC-37, Lactobacillus plantarum Lp-115, and Bifidobacterium animalis lactis BL-04, all grouped under the MAKTREK Proprietary Blend.

You'll also find fructooligosaccharides (FOS), a type of fiber that feeds beneficial bacteria in your gut, and a Marine Polysaccharide Complex. The capsule itself contains cellulose, rice maltodextrin, and L-leucine as inactive ingredients.

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: digestive health and intestinal function support.
  • We looked for evidence on: Antibiotic-associated diarrhea, Clostridioides difficile infection, Colic, Constipation, Inflammatory bowel disease (IBD), Irritable bowel syndrome (IBS) — 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: Fructo-oligosaccharides (fos) is rated "Insufficient Reliable Evidence To Rate" for Constipation.

Evidence for the probiotics in this product is mixed. Lactobacillus acidophilus LA-14 is possibly effective for irritable bowel syndrome (IBS), antibiotic-associated diarrhea, bacterial vaginosis, and Helicobacter pylori infection — but it's also rated possibly ineffective for atopic disease (allergic conditions).

For the other probiotic strains and ingredients, we don't have effectiveness ratings in our data, so we can't tell you what the science shows. FOS has been studied for osteoporosis, constipation, diabetes, traveler's diarrhea, and cholesterol, but the evidence for each is rated insufficient to draw a conclusion.

The evidence, ingredient by ingredient Fructo-oligosaccharides (fos) 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 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.

Lactobacillus acidophilus is generally well tolerated in healthy adults and children. The probiotics in this product may cause mild gastrointestinal side effects — abdominal pain, bloating, flatulence, or diarrhea — but these are uncommon.

FOS can cause gas and bloating, especially at higher doses; most people tolerate food amounts fine, but supplement-level doses haven't been studied thoroughly. In rare cases, L. acidophilus preparations have been linked to serious infections (bacteremia, endocarditis) in certain patient populations, though these are thought to stem from bacteria moving from their natural locations in the body rather than the supplement itself.

If you have a weakened immune system or are hospitalized, talk to your doctor first.

Side effects, ingredient by ingredient Fructo-oligosaccharides (fos) 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 2 matched ingredients 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.

If you take antibiotics, separate them from this supplement by several hours — the probiotic bacteria can be killed by the antibiotic, reducing its benefit. We could not check four of the product's ingredients (Bifidobacterium animalis lactis BL-04, Lactobacillus paracasei LPC-37, Lactobacillus plantarum Lp-115, and Marine Polysaccharide Complex) for interactions, so use the medication checker on this page to look up your full drug list before starting.

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.

This is a multi-strain probiotic blend aimed at gut health. It may help if you have IBS, antibiotic-associated diarrhea, or certain infections, though the evidence varies by strain.

If you're taking antibiotics, space them several hours apart from this supplement. Before you start, check your medications — especially antibiotics — and talk to your pharmacist or doctor if you have a compromised immune system.

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

Assessment coverage: 2 of 6 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Sep 25, 2025.

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

At a glance

General information

Key facts about Fungus Defend Max, straight from the product label.

Brand Justified Laboratories
Barcode (UPC) 840317600100
Net contents 60 Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2025
DSLD ID 341030
Product type Other Combinations
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Fungus Defend Max by Justified Laboratories, 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
840317600100
IngredientAmount% DV
Bifidobacterium animalis lactis BL-040 NP--
Fructooligosaccharides0 NP--
Lactobacillus acidophilus LA-140 NP--
MAKTREK Proprietary Blend of Probiotic Bacteria0 NP--
Lactobacillus paracasei LPC-370 NP--
Marine Polysaccharide Complex0 NP--
Lactobacillus plantarum Lp-1150 NP--

Other ingredients: Cellulose, Rice Maltodextrin, L-Leucine

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.
Suggested/Recommended/Usage/Directions

Suggested use: As a dietary supplement, take (2) capsules once daily. For best results take 20-30 minutes before a meal with an 8 oz glass of water or as directed by your health care professional.

Formula

Probiotic-40 offers a balanced spectrum of live organisms, probiotic bacteria are critical for healthy digestion, help maintain the integrity of the intestinal lining, support proper intestinal motility and participate in the detoxification process.

Fungus Defend Max 40 Billion CFU Formula

Precautions

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

Caution: As with any dietary supplement, consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, anticipate surgery, take medication on a regular basis or are otherwise under medical supervision.

Storage

Store in a cool, dry place.

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.

Formulation

This product is formulated with 40 billion CFU per 2 caps and to deliver a minimum potency of 20 billion CFU per 2 caps through the best by date.

Maximum strength

FDA Statement of Identity

Dietary Supplement

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

See for yourself

Fungus Defend Max by Justified Laboratories label

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

Fungus Defend Max 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 Fungus Defend Max by Justified Laboratories

These are the 6 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.

MAKTREK Proprietary Blend of Probiotic Bacteria

0 NP per serving

Other (inactive) ingredients: Cellulose, Rice Maltodextrin, L-Leucine. These complete the product’s ingredient list but are not active constituents.

Interaction report

Fungus Defend Max by Justified Laboratories Drug Interactions

Want to check YOUR meds against Fungus Defend Max?

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 LA-14 182

Individual Drug Interactions

The ingredients in Fungus Defend Max interact with 182 drugs. Click any drug to see the details.

1 of the 6 ingredients in Fungus Defend Max interact with drugs. Each result below shows which ingredient is responsible. Lactobacillus acidophilus LA-14

Each ingredient & the kinds of drugs it affects

For each ingredient in Fungus Defend Max 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.

Lactobacillus acidophilus LA-141 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 LA-14 full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Fungus Defend Max, from the product label.

Justified Laboratories

See all Justified Laboratories products
Name
Justified Laboratories
City
Arlington
State
TX
ZipCode
76011
Phone Number
1-888-645-9404
Web Address
www.justifiedlaboratories.com
Pharmacist Counseling Corner

Fungus Defend Max by Justified Laboratories: Common Questions

Does Fungus Defend Max by Justified Laboratories interact with any medications?
Yes. Based on its ingredients, Fungus Defend Max 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?
Fungus Defend Max 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 with my antibiotic?
Not at the same time. The antibiotic will kill the live bacteria in the probiotic, so it won't work as well. Take them at least a few hours apart — ask your pharmacist exactly when to take each one. After you finish the antibiotic, that's a good time to restart the probiotic.
Will this cause bloating or gas?
Possibly. The probiotics and FOS (prebiotic fiber) can cause abdominal bloating, flatulence, and pain, especially when you first start. These effects are usually mild and tend to settle down, but they're not guaranteed. If gas is a real problem for you, mention it to your pharmacist.
Is this safe if I have a weak immune system?
Talk to your doctor first. While rare, live probiotic bacteria have been linked in some cases to serious infections in people with severely compromised immunity. Your doctor can tell you whether it's right for you.
Does this actually help with IBS or diarrhea?
The Lactobacillus acidophilus strain in here is rated possibly effective for IBS and antibiotic-associated diarrhea, meaning there's some evidence — but it's not a sure thing. Results vary from person to person. For the other probiotic strains, we don't have effectiveness data on file.
Is there any data on using this during pregnancy or breastfeeding?
We don't have pregnancy or breastfeeding safety data on file for the ingredients in this product. Talk to your doctor or midwife before taking it while pregnant or nursing.
What's the Marine Polysaccharide Complex for?
The product facts don't tell us its specific role in the formula. Check with the manufacturer or your pharmacist if you want details on that ingredient.

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

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Fungus Defend Max label
Go deeper

The Full Monographs Behind Fungus Defend Max’s Ingredients

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

Herb & supplement monograph

Fructo-oligosaccharides (fos)

Fructo-oligosaccharides (FOS) are a type of soluble fiber that acts as a prebiotic, meaning they feed the helpful bacteria in your gut. They are generally considered safe for most people in...

Read the full Fructo-oligosaccharides (fos) 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 →
Sources

Sources & How We Checked

Fungus Defend Max'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 21 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.

Fructo-oligosaccharides (fos) 6 references
  1. Briet F, et al. Symptomatic response to varying levels of fructo-oligosaccharides consumed occasionally or regularly. Eur J Clin Nutr 1995;49:501-7.
  2. Bouhnik Y, Vahedi K, Achour L, et al. Short-chain fructo-oligosaccharide administration dose-dependently increases fecal bifidobacteria in healthy humans. J Nutr 1999;129:113-6. PubMed
  3. Cummings JH, Macfarlane GT, Englyst HN. Prebiotic digestion and fermentation. Am J Clin Nutr 2001;73:415S-420S. PubMed
  4. Souza DDS, Tahan S, Weber TK, Araujo-Filho HB, de Morais MB. Randomized, double-blind, placebo-controlled parallel clinical trial assessing the effect of fructooligosaccharides in infants with constipation. Nutrients. 2018;10(11). pii: E1602. PubMed
  5. Andermann TM, Fouladi F, Tamburini FB, et al. A Fructo-Oligosaccharide Prebiotic Is Well Tolerated in Adults Undergoing Allogeneic Hematopoietic Stem Cell Transplantation: A Phase I Dose-Escalation Trial. Transplant Cell Ther 2021;27(11):932. PubMed
  6. Dou Y, Yu X, Luo Y, Chen B, Ma D, Zhu J. Effect of Fructooligosaccharides Supplementation on the Gut Microbiota in Human: A Systematic Review and Meta-Analysis. Nutrients 2022;14(16):3298. PubMed

See these in context on the Fructo-oligosaccharides (fos) 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 →

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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