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Dietary supplement

Maitake-DMG Liquid Ingredients & Drug Interactions

by DaVinci Laboratories Of Vermont

Maitake-DMG Liquid label
See full label image
Liquid 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-DMG Liquid 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-DMG Liquid is a dietary supplement by DaVinci Laboratories Of Vermont 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 PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract. 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-DMG Liquid by DaVinci Laboratories Of Vermont

Ask about any prescription or over-the-counter medication and we check it for interactions with Maitake-DMG Liquid by DaVinci Laboratories Of Vermont — and tell you which ingredient is responsible.

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Computed from our clinical databases

HelloPharmacist Scorecard of Maitake-DMG Liquid by DaVinci Laboratories Of Vermont

Four independent checks of what is known — a summary of the available information, not a grade of the product itself.

Evidence for Intended Use
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

None of the active ingredients could be matched to our evidence database, so intended use can't be graded.

Why this rating?
  • None of the active ingredients could be matched to a HelloPharmacist monograph, so intended use can't be graded against our evidence data.
Ingredient Transparency
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • “Maitake PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract” is listed as a grouped ingredient — the label gives one combined amount (30 mg) without saying how much of each component you get.
Known Interaction Concern
Not assessable

None of the active ingredients could be matched to our interaction database.

Why this rating?
  • We couldn't match any ingredient to a HelloPharmacist monograph, so there was nothing to check interactions against.
Safety Information
Unable to assess

None of the active ingredients could be matched to our safety data.

Why this rating?
  • We couldn't match any ingredient to a HelloPharmacist monograph, so there was no safety data to measure.

HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Medication interactions could not be assessed, and safety information could not be assessed.

Assessment coverage: 0 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 25, 2013.

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-DMG Liquid, straight from the product label.

Brand DaVinci Laboratories Of Vermont
Barcode (UPC) 026664222213
Net contents 4 oz.; 120 mL
Market status On market
Date entered into DSLD Jun 25, 2013
DSLD ID 22913
Product type Non-nutrient/non-botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) 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 Maitake-DMG Liquid by DaVinci Laboratories Of Vermont, 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 mL
Maximum serving Sizes:
1 mL
Servings per container
120
UPC/BARCODE
026664222213
IngredientAmount% DV
D-Fraction(R)9 mg--
Maitake PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract30 mg--
N,N-Dimethylglycine450 mg--

Other ingredients: Glycerin, Water, Ascorbyl Palmitate

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.
Brand IP Statement(s)

Maitake-DMG Liquid(TM) is a combination of 2 well researched nutrients for immune system support. Maitake has been used in traditional Japanese herbology for hundreds of years. Maitake PD-Fraction(TM) is an extract standardized with D-Fraction(R), one of nature's most comprehensive immune support compounds. This extract combined with our DMG, which is well-known for its immune-properties and as a promoter of staminal, endurance and energy levels, may play a significant role in maintaining health by supporting the body's immune system functions.

Maitake PD-Fraction(TM) and D-Fraction(R) are trademarks of Maitake Products, Inc.

Formulation

This product is vegetarian and free of citrus, corn, egg, gluten, milk, rice, sodium, soy, wheat, yeast, added starches, synthetic dyes, artificial flavorings and preservatives.

GLUTEN FREE YEAST FREE

This product is vegetarian and free of citrus, corn, egg, gluten, milk, rice, sodium, soy, wheat, yeast, added starches, synthetic dyes, artificial flavorings and preservatives.

General Statements

Color of this product may vary due to color variations of the natural ingredients.

TRUTH We pledge total truth in labeling. Our family of products contain only the purest and most potent ingredients. Guaranteed.

Suggested/Recommended/Usage/Directions

Suggested Use: As a dietary supplement, take 1 ml, 6 times daily for 3 weeks. Then reduce to 1 ml, 3 times daily, or as directed by your health care practitioner.

General

0200222.120 0909

FDA Disclaimer Statement

This statement has 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

A Dietary Supplement to Support Immune System Function

Precautions

Warning: If pregnant or nursing, consult your health care practitioner before taking this product.

Keep out of reach of children.

Storage

Store in a cool, dry place.

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

See for yourself

Maitake-DMG Liquid by DaVinci Laboratories Of Vermont label

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

Maitake-DMG Liquid 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-DMG Liquid by DaVinci Laboratories Of Vermont

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

Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Maitake PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract

Interacts with
260 drugs
30 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 PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract monograph & interactions
  • › D-Fraction(R)
  • › N,N-Dimethylglycine

Other (inactive) ingredients: Glycerin, Water, Ascorbyl Palmitate. These complete the product’s ingredient list but are not active constituents.

Interaction report

Maitake-DMG Liquid by DaVinci Laboratories Of Vermont Drug Interactions

Maitake-DMG Liquid contains a single active ingredient, and it has known interactions with 260 medications. Here’s the picture, then you can look up your own drug.

Want to check YOUR meds against Maitake-DMG Liquid?

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 PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract 260

Individual Drug Interactions

The ingredients in Maitake-DMG Liquid interact with 260 drugs. Click any drug to see the details.

1 of the 1 ingredient in Maitake-DMG Liquid interact with drugs. Each result below shows which ingredient is responsible. Maitake PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Maitake-DMG Liquid 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.

Maitake PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract3 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 PD-Fraction(TM) (Grifola frondosa) Fruiting Body Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Maitake-DMG Liquid, from the product label.

DaVinci Laboratories Of Vermont

See all DaVinci Laboratories Of Vermont products
Name
DaVinci Laboratories of Vermont a division of FoodScience Corp.
Street Address
20 New England Drive, Suite 10
City
Essex Junction
State
VT
ZipCode
05452
Web Address
www.davincilabs.com
Pharmacist Counseling Corner

Maitake-DMG Liquid by DaVinci Laboratories Of Vermont: Common Questions

Does Maitake-DMG Liquid by DaVinci Laboratories Of Vermont interact with any medications?
Yes. Based on its ingredients, Maitake-DMG Liquid 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-DMG Liquid 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.

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.

Maitake-DMG Liquid label
Go deeper

The Full Monographs Behind Maitake-DMG Liquid’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-DMG Liquid'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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