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Dietary supplement

Lion's Mane Ingredients & Drug Interactions

by Host Defense Mushrooms

Lion's Mane label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Lion's Mane 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

Lion's Mane is a dietary supplement by Host Defense Mushrooms with 1 active ingredient. Its ingredients are commonly taken for memory and cognitive support, nerve health, mood and anxiety.Based on those ingredients, 327 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Lion's Mane. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Lion's Mane by Host Defense Mushrooms

Ask about any prescription or over-the-counter medication and we check it for interactions with Lion's Mane by Host Defense Mushrooms — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Lion's Mane by Host Defense Mushrooms

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 Oct 1, 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 contains one active ingredient: lion's mane mushroom, a fungus traditionally used in Asian cuisines and herbal practice. The powder form gives you the whole mushroom extract with no added fillers or other inactive ingredients.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Lion's Mane Mushroom's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: memory, mood, and cognition support.
  • We looked for evidence on: Memory, Cognitive function, Anxiety, Depression, Dementia, Cognitive impairment — and 4 related terms.
  • The closest evidence on file: Lion's Mane Mushroom is rated "Insufficient Reliable Evidence To Rate" for Alzheimer disease (Natural Medicines).
  • Also on file: Lion's Mane Mushroom is rated "Insufficient Reliable Evidence To Rate" for Anxiety, Cognitive function, Cognitive impairment, Dementia, and more.

The evidence for lion's mane mushroom is still being developed. For cognitive function, cognitive impairment, Alzheimer disease, anxiety, athletic performance, and cancer, we don't yet have reliable evidence to say whether it works.

You'll want to talk with your doctor about what the current research actually supports for your specific reason for considering it.

The evidence, ingredient by ingredient Lion's Mane Mushroom

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 0 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.

Lion's mane is generally well tolerated when taken by mouth. The most common side effects in users are gastrointestinal discomfort, nausea, and skin rash — usually mild.

Long-term supplement safety hasn't been well studied, so ongoing caution is warranted. There isn't enough safety data to know whether it's appropriate during pregnancy or while breastfeeding — talk with your doctor or pharmacist before using it in either situation.

Side effects, ingredient by ingredient Lion's Mane 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 — Lion's Mane Mushroom.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; diabetes medications.
  • For scale: 327 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.

Check with your doctor or pharmacist if you take blood thinners (like warfarin or aspirin), diabetes medications, or immunosuppressants — lion's mane may theoretically increase bleeding risk, intensify blood-sugar lowering, or interfere with immune suppression.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and some safety-information gaps remain.

Lion's mane is a single-ingredient mushroom powder generally well tolerated for short-term use, but the evidence for what it actually does is still limited. If you take blood thinners, diabetes medications, or immune-suppressing drugs, you'll need to check with your doctor or pharmacist before adding this — the interactions could be meaningful.

Your own healthcare provider can weigh whether this makes sense for you and your medications.

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 Jun 20, 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 Lion's Mane, straight from the product label.

Brand Host Defense Mushrooms
Barcode (UPC) 633422522319
Net contents 7 Ounce(s); 200 Gram(s)
Market status On market
Date entered into DSLD Jun 20, 2024
DSLD ID 312244
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Organic, 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 Lion's Mane by Host Defense Mushrooms, 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:
1.5 Gram(s)
Maximum serving Sizes:
1.5 Gram(s)
Servings per container
133
UPC/BARCODE
633422522319
IngredientAmount% DV
Calories5 Calorie(s)--
Total Carbohydrates1 Gram(s)1%
Lion's Mane1.5 Gram(s)--

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)

Powered by mushroom mycelium

Formula

Lion's Mane, known as "The smart mushroom", supports memory, mood, and cognition.

Mushroom mycelium powder

Formulation

Sustainably grown in the USA under the supervision of Paul Stamets, our mushroom mycelium is cultured on organic brown rice. This bioavailable powder has a mild flavor and can be mixed in your favorite recipe.

Vegan

Gluten free

USDA Organic

Non GMO

Memory & nerve support

Certified organic by the WSDA

Precautions

Caution: If you have a medical condition, are taking medications, or are pregnant or breastfeeding, consult a healthcare professional before using this product.

Keep out of reach of children.

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.

General Statements

Paul Stamets Fungi Perfecti, LLC Eco Packaging

Seals/Symbols

USDA Organic

Certified organic Washington State Department of Agriculture organic program

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

Lion's Mane by Host Defense Mushrooms label

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

Lion's Mane 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 Lion's Mane by Host Defense Mushrooms

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

Serving size1.5 Gram(s) Dosage formPowder Servings per container133 Amounts shown are per serving.

Lion's Mane

Interacts with
327 drugs
1.5 Gram(s) per serving

Lion's mane is an edible mushroom that is popular as a 'nootropic' for memory, focus, and nerve health, but solid human evidence is still limited and...

Lion's Mane monograph & interactions
Interaction report

Lion's Mane by Host Defense Mushrooms Drug Interactions

Want to check YOUR meds against Lion's Mane?

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
327Drugs
327 Moderate

Ingredients driving the most interactions

Lion's Mane 327

Individual Drug Interactions

The ingredients in Lion's Mane interact with 327 drugs. Click any drug to see the details.

1 of the 1 ingredient in Lion's Mane interact with drugs. Each result below shows which ingredient is responsible. Lion's Mane

Each ingredient & the kinds of drugs it affects

For each ingredient in Lion's Mane 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.

Lion's Mane3 drug types · 327 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, lion's mane mushroom may increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.
In vitro research suggests that lion's mane mushroom extracts can inhibit platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, lion's mane mushroom may have additive effects when used with antidiabetes drugs.
Animal research suggests that an aqueous extract of lion's mane mushroom can reduce serum glucose and increase serum insulin.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, concurrent use of lion's mane mushroom might interfere with immunosuppressive therapy.
In animal and in vitro research, lion's mane mushroom polysaccharides stimulate the immune system.

Likelihood Possible Evidence D
Lion's Mane full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Lion's Mane, from the product label.

Host Defense Mushrooms

See all Host Defense Mushrooms products
Name
Fungi Perfecti, LLC
Street Address
PO Box 7634
City
Olympia
State
WA
ZipCode
98507
Phone Number
877-504-6926
Web Address
Hostdefense.com
Pharmacist Counseling Corner

Lion's Mane by Host Defense Mushrooms: Common Questions

Does Lion's Mane by Host Defense Mushrooms interact with any medications?
Yes. Based on its ingredients, Lion's Mane has a known interaction with 327 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Lion's Mane 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 if I'm pregnant or nursing?
Not enough safety data exists for lion's mane during pregnancy or breastfeeding. Talk with your doctor or pharmacist before using it if you're pregnant, planning to become pregnant, or breastfeeding — they can help you decide based on your individual situation.
What side effects should I watch for?
The most common are gastrointestinal discomfort, nausea, and skin rash. Lion's mane is generally well tolerated, but if you notice any of these, you can lower your dose or stop and check with your pharmacist.
Does lion's mane actually improve memory or brain function?
The evidence isn't established yet. We don't have reliable data to say whether it works for cognitive function, cognitive impairment, Alzheimer disease, or anxiety. More research is ongoing, but you can't count on it for those uses right now.
Is this a whole mushroom or an extract?
This powder is a lion's mane mushroom extract — a concentrated form of the fungus. It contains no added fillers or other inactive ingredients.

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

Not sure if Lion's Mane 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.

Lion's Mane label
Go deeper

The Full Monographs Behind Lion's Mane’s Ingredients

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

Herb & supplement monograph

Lion's Mane Mushroom

Interacts with 327 drugs

Lion's mane is an edible mushroom that is popular as a 'nootropic' for memory, focus, and nerve health, but solid human evidence is still limited and early. It is generally well tolerated as...

Read the full Lion's Mane Mushroom monograph →
Sources

Sources & How We Checked

Lion's Mane'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 6 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.

Lion's Mane Mushroom 6 references
  1. Product information for <em>Niaspan</em>. Abbott Laboratories. North Chicago, IL 60064. April 2015.
  2. Liang B, Guo Z, Xie F, Zhao A. Antihyperglycemic and antihyperlipidemic activities of aqueous extract of Hericium erinaceus in experimental diabetic rats. BMC Complement Altern Med. 2013;13:253. PubMed
  3. Mori K, Inatomi S, Ouchi K, Azumi Y, Tuchida T. Improving effects of the mushroom Yamabushitake (Hericium erinaceus) on mild cognitive impairment: a double-blind placebo-controlled clinical trial. Phytother Res. 2009;23(3):367-72.
  4. Mori K, Kikuchi H, Obara Y, et al. Inhibitory effect of hericenone B from Hericium erinaceus on collagen-induced platelet aggregation. Phytomedicine. 2010;17(14):1082-5. PubMed
  5. Li IC, Chang HH, Lin CH, et al. Prevention of early Alzheimer's disease by erinacine A-enriched Hericium erinaceus mycelia pilot double-blind placebo-controlled study. Front Aging Neurosci 2020 Jun 3;12:155. doi: 10.3389/fnagi.2020.00155. PubMed
  6. Tian B, Liu R, Xu T, et al. Modulating effects of Hericium erinaceus polysaccharides on the immune response by regulating gut microbiota in cyclophosphamide-treated mice. J Sci Food Agric 2023;103(6):3050-3064.

See these in context on the Lion's Mane 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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