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Dietary supplement

Lion's Mane Ingredients & Drug Interactions

by Host Defense Mushrooms

Lion's Mane label
See full label image
Capsule 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. The capsule shell is made from Pullulan, an inert ingredient that holds the mushroom powder together.

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 and nerve support.
  • We looked for evidence on: Alzheimer disease, Anxiety, Cognitive function, Cognitive impairment, Dementia, Depression — 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 isn't established yet. We hold ratings of insufficient reliable evidence for Alzheimer disease, anxiety, athletic performance, cancer, cognitive function, and cognitive impairment — meaning the studies so far haven't been robust enough to say whether it works for those uses.

If you're considering it for a specific reason, talk it over with your doctor or pharmacist about what the current science supports.

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 eaten as food, but long-term supplement safety hasn't been well studied. The most common side effects reported are gastrointestinal discomfort, nausea, and occasionally a skin rash.

Pregnancy and breastfeeding: there isn't enough safety data, so the evidence advises against use during pregnancy and while breastfeeding. Talk with your doctor or pharmacist about whether this product is right for you in those situations.

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 (anticoagulants or antiplatelet drugs), diabetes medications, or immunosuppressants before starting this product. Lion's mane may increase bleeding risk, lower blood sugar further, or interfere with immune-suppressing therapy.

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 may be worth considering if you're interested in cognitive support, though the evidence for specific benefits isn't solid yet. Before you start, check your blood thinners, diabetes medications, or immunosuppressants with your doctor or pharmacist — lion's mane may affect how they work.

If you're pregnant or breastfeeding, skip it unless your healthcare provider says otherwise.

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 Jul 25, 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) 633422031637
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Jul 25, 2024
DSLD ID 312395
Product type Botanical
Supplement form Capsule
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:
2 Capsule(s)
Maximum serving Sizes:
2 Capsule(s)
Servings per container
60
UPC/BARCODE
633422031637
IngredientAmount% DV
Calories5 Calorie(s)--
Total Carbohydrates1 Gram(s)1%
Lion's Mane1 Gram(s)--

Other ingredients: Pullulan

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

Made with organic mushroom mycelium LION'S MANE (Hericium erinaceus) Memory & Nerve Support Known as "The Smart Mushroom", Lion's Mane is ideal for anyone seeking cognition, memory, and mood support. Long-renowned for supporting the nervous system, studies also show that Lion's Mane can increase Nerve Growth Factor.

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement, take 2 capsules once per day. Can be taken with food or on an empty stomach or as recommended by your healthcare professional.

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.

Formulation

Memory & nerve support

Gluten free & Vegan Non GMO

Gluten free & Vegan

Certified Organic by the Washington State Department of Agriculture.

Seals/Symbols

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 size2 Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Lion's Mane

Interacts with
327 drugs
1 Gram(s) per serving Form: Hericium erinaceus

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

Other (inactive) ingredients: Pullulan. These complete the product’s ingredient list but are not active constituents.

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.
What exactly is lion's mane mushroom?
Lion's mane is a mushroom used in traditional medicine and foods. This supplement contains a concentrated extract in capsule form. The exact potency and preparation vary by brand, so check the label on the package you buy.
Can I take this if I'm pregnant?
No — there isn't enough safety data, so the evidence advises against it during pregnancy. Talk with your doctor or pharmacist before taking it if you're pregnant or planning to become pregnant.
What side effects might I notice?
Most people tolerate it well, but some experience gastrointestinal discomfort, nausea, or a skin rash. These are mild and uncommon, but stop taking it and check in with your pharmacist or doctor if they bother you or don't go away.
Does lion's mane actually work for memory or brain health?
The evidence isn't clear enough yet to say for sure. We hold insufficient evidence ratings for cognitive function, Alzheimer disease, and related uses — meaning studies so far haven't been strong enough to confirm it works. Your doctor or pharmacist can discuss what's known and whether it might fit your health goals.
Can I use this while taking blood thinners?
Not without checking first. Lion's mane may increase bleeding risk when combined with blood thinners or antiplatelet drugs. Talk with your doctor or pharmacist before starting — they can advise you based on your specific situation.
Is there anything else in the capsule besides the mushroom?
The capsule shell is made of Pullulan, which is an inert filler that holds the powder together. That's the only other ingredient listed.

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

Not sure if Lion's Mane 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.

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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