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Dietary supplement

Maitake Mushroom Extract Ingredients & Drug Interactions

by Nootropics Depot

Maitake Mushroom Extract label
See full label image
Powder 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 Maitake Mushroom Extract 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

Maitake Mushroom Extract is a dietary supplement by Nootropics Depot with 1 active ingredient. Its ingredients are commonly taken for immune support, blood sugar support in diabetes, high blood pressure.Based on those ingredients, 260 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Maitake. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Maitake Mushroom Extract by Nootropics Depot

Ask about any prescription or over-the-counter medication and we check it for interactions with Maitake Mushroom Extract by Nootropics Depot — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Maitake Mushroom Extract by Nootropics Depot

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 Aug 20, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product is a straightforward single-ingredient supplement: maitake mushroom extract powder. Maitake is a medicinal fungus used traditionally in Asia, and this extract concentrates its bioactive compounds.

There are no inactive fillers or other ingredients listed.

Does it work?

Couldn't assess
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
Not assessable

This is a single-ingredient Maitake Mushroom product and its label doesn't state a use — see Maitake Mushroom's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for maitake's effectiveness isn't yet established in reliable clinical terms. The data we hold lists six potential uses — including hay fever, chemotherapy-related anemia and diarrhea, laryngeal cancer, and chronic fatigue syndrome — but all are rated as having insufficient reliable evidence to support them.

In other words, while traditional and some early research suggests promise, we don't yet have solid proof it works for these conditions.

The evidence, ingredient by ingredient Maitake Mushroom

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.

Maitake mushroom is generally well tolerated when used as food or in supplements. The most common side effects reported in clinical trials were mild stomach issues: a small number of trial participants experienced diarrhea, nausea, or epigastric pain (upper abdominal discomfort).

One person reported a rash and itching after two doses, but this cleared on its own without treatment. During pregnancy and breastfeeding, there isn't enough safety data on concentrated maitake supplements.

The safety data advises against using them in these periods. If you're pregnant or nursing and considering maitake, talk it over with your doctor or pharmacist.

Side effects, ingredient by ingredient Maitake Mushroom

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 — Maitake Mushroom.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 260 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.

Before taking this product, check with your doctor or pharmacist if you take blood thinners (especially warfarin), blood pressure medications, or diabetes medications. Maitake may boost the effects of blood thinners and lower blood pressure or blood sugar further, creating a safety risk.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Maitake mushroom extract is generally well tolerated by mouth, but it does interact with blood thinners, blood pressure drugs, and diabetes medications — sometimes significantly. If you take any of those, or any prescription medication, check it with your doctor or pharmacist before adding this product.

The evidence for what maitake actually does for health isn't yet solid in our data, so be clear on what you're hoping it will help with.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Aug 23, 2020.

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

At a glance

General information

Key facts about Maitake Mushroom Extract, straight from the product label.

Brand Nootropics Depot
Net contents 0.35 Ounce(s); 10 Gram(s)
Market status On market
Date entered into DSLD Aug 23, 2020
DSLD ID 232393
Product type Non-nutrient/non-botanical
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Women (not pregnant or lactating), Organic
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 Maitake Mushroom Extract by Nootropics Depot, 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:
0.5 Gram(s)
Maximum serving Sizes:
0.5 Gram(s)
Servings per container
20
IngredientAmount% DV
Maitake500 mg--

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

Beta-Glucan mimimum content: 30%

FDA Statement of Identity

Dietary Supplement

General Statements

Disclaimer: Transfer scoops are not accurate. A mg scale is needed to measure dosages.

Precautions

Always consult with a qualified health physician before taking any new dietary supplement.

Warning: Keep out of reach of children. Do not take if under 18, pregnant/nursing, have any medical conditions or taking Rx/OTC drugs.

Do not take if under 18, pregnant/nursing, have any medical conditions or taking Rx/OTC drugs.

FDA Disclaimer Statement

This product is not intended to diagnose, treat, cure or prevent any diseases. These statements have not been evaluated by the FDA.

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take 500mg 1-2 times daily.

Storage

Storage: Store in a cool and dry place. Keep away from direct sunlight and heat.

Formulation

Non GMO

USDA Organic

Seals/Symbols

USDA Organic

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

See for yourself

Maitake Mushroom Extract by Nootropics Depot label

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

Maitake Mushroom Extract 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 Maitake Mushroom Extract by Nootropics Depot

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

Serving size0.5 Gram(s) Dosage formPowder Servings per container20 Amounts shown are per serving.

Maitake

Interacts with
260 drugs
500 mg per serving

Maitake is an edible mushroom long used as food and in traditional Japanese medicine, and it is being studied for possible immune, blood sugar, and bl...

Maitake monograph & interactions
Interaction report

Maitake Mushroom Extract by Nootropics Depot Drug Interactions

Want to check YOUR meds against Maitake Mushroom Extract?

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
260Drugs
260 Moderate

Ingredients driving the most interactions

Maitake 260

Individual Drug Interactions

The ingredients in Maitake Mushroom Extract interact with 260 drugs. Click any drug to see the details.

1 of the 1 ingredient in Maitake Mushroom Extract interact with drugs. Each result below shows which ingredient is responsible. Maitake

Each ingredient & the kinds of drugs it affects

For each ingredient in Maitake Mushroom Extract 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.

Maitake3 drug types · 260 drugs

Antidiabetes Drugs

Theoretically, combining maitake mushroom with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research shows that taking maitake mushroom polysaccharide (MMP) can lower blood glucose levels in patients with types 2 diabetes.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, combining maitake mushroom with antihypertensive drugs might increase the risk of hypotension.
Animal research shows that maitake mushroom can lower blood pressure.

Likelihood Possible Evidence D
Warfarin (Coumadin)

There is limited evidence that maitake mushroom may increase the anticoagulant effects of warfarin.
In a case report, a patient previously stabilized on warfarin developed an elevated international normalized ratio (INR) of 5.1 after taking maitake mushroom (Grifron-Pro Maitake D-Fraction) 1 drop/kg daily in three divided doses for one week. The elevated INR resolved after holding warfarin for two days, then reducing the dose by 11%. It is thought that the beta-glucan constituent of maitake mushroom might cause warfarin dissociation from proteins, resulting in increased free warfarin levels and increased warfarin effects.

Likelihood Possible Evidence D
Maitake full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Maitake Mushroom Extract, from the product label.

Nootropics Depot

See all Nootropics Depot products
Name
Nootropics Depot
Street Address
8380 S. Kyrene Rd. Ste. 110
City
Tempe
State
AZ
ZipCode
85284
Pharmacist Counseling Corner

Maitake Mushroom Extract by Nootropics Depot: Common Questions

Does Maitake Mushroom Extract by Nootropics Depot interact with any medications?
Yes. Based on its ingredients, Maitake Mushroom Extract has a known interaction with 260 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Maitake Mushroom Extract 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 maitake if I'm on warfarin?
Not without checking first. A case report shows one patient's warfarin level jumped to an unsafe height after taking maitake for a week. Talk to your doctor or pharmacist — they may need to monitor your blood-thinning level more closely or adjust your warfarin dose if you want to use maitake.
Will this help my blood sugar or blood pressure?
The evidence we hold doesn't confirm maitake works for either. Animal studies and one clinical trial suggest it *can* lower blood sugar and blood pressure, but we don't have enough reliable proof to say it will help you. If you take diabetes or blood pressure meds and use maitake, there's a risk it could lower these too far, which is another reason to talk to your doctor first.
What are the side effects?
Most people tolerate it well. In clinical trials, a small number experienced stomach upset — diarrhea, nausea, or upper belly pain. One person developed a rash and itching after two doses, but it went away on its own. Stop and call your doctor if you have severe or ongoing stomach symptoms.
Is it safe while I'm pregnant or breastfeeding?
There isn't enough safety data on concentrated maitake supplements during pregnancy or breastfeeding. The safety data advises against using them in these periods. Talk to your doctor or pharmacist for personalized guidance.
What exactly is maitake mushroom?
Maitake is a medicinal fungus — also called hen of the woods — used for centuries in traditional Asian medicine. This product is a concentrated extract of that mushroom, capturing its bioactive compounds in powder form.

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

Not sure if Maitake Mushroom Extract 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.

Maitake Mushroom Extract label
Go deeper

The Full Monographs Behind Maitake Mushroom Extract’s Ingredients

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

Herb & supplement monograph

Maitake Mushroom

Interacts with 260 drugs

Maitake is an edible mushroom long used as food and in traditional Japanese medicine, and it is being studied for possible immune, blood sugar, and blood pressure effects. The human evidence...

Read the full Maitake Mushroom monograph →
Sources

Sources & How We Checked

Maitake Mushroom Extract'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 8 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.

Maitake Mushroom 8 references
  1. Kabir Y, Kimura S. Dietary mushrooms reduce blood pressure in spontaneously hypertensive rats (SHR). J Nutr Sci Vitaminol (Tokyo) 1989;35:91-4. PubMed
  2. Kabir Y, Yamaguchi M, Kimura S. Effect of shiitake (Lentinus edodes) and maitake (Grifola frondosa) mushrooms on blood pressure and plasma lipids of spontaneously hypertensive rats. J Nutr Sci Vitaminol (Tokyo) 1987;33:341-6. PubMed
  3. Konno S, Tortorelis DG, Fullerton SA, et al. A possible hypoglycaemic effect of maitake mushroom on Type 2 diabetic patients. Diabet Med 2001;18:1010. PubMed
  4. Chen JT, Tominaga K, Sato Y, et al. Maitake mushroom (Grifola frondosa) extract induces ovulation in patients with polycystic ovary syndrome: a possible monotherapy and a combination therapy after failure with first-line clomiphene citrate. J Altern Compl
  5. Hanselin MR, Vande Griend JP, Linnebur SA. INR elevation with maitake extract in combination with warfarin. Ann Pharmacother 2010;44:223-4. PubMed
  6. Talpur, N. A., Echard, B. W., Fan, A. Y., Jaffari, O., Bagchi, D., and Preuss, H. G. Antihypertensive and metabolic effects of whole Maitake mushroom powder and its fractions in two rat strains. Mol.Cell Biochem. 2002;237(1-2):129-136. PubMed
  7. Deng, G., Lin, H., Seidman, A., Fornier, M., D'Andrea, G., Wesa, K., Yeung, S., Cunningham-Rundles, S., Vickers, A. J., and Cassileth, B. A phase I/II trial of a polysaccharide extract from Grifola frondosa (Maitake mushroom) in breast cancer patients: i
  8. Wesa KM, Cunningham-Rundles S, Klimek VM, et al. Maitake mushroom extract in myelodysplastic syndromes (MDS): a phase II study. Cancer Immunol Immunother 2015;64(2):237-47. PubMed

See these in context on the Maitake Mushroom 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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