Drug & supplement interaction

Lion's Mane Mushroom + Lorazepam

Lorazepam brand name: Ativan.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Lion's Mane Mushroom and Lorazepam in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Lion's Mane Mushroom and Lorazepam

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Lorazepam and Lion's Mane Mushroom in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Lion's Mane Mushroom safety at a glance

Lion's Mane Mushro... overall Use caution Generally well tolerated as a food, but supplement safety has not been well studied long-term.
Pregnancy Avoid Not enough safety data, so it is best to avoid during pregnancy.
Breastfeeding Avoid Not enough safety data, so it is best to avoid while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Lorazepam and Lion's Mane Mushroom? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Lorazepam

Interactions in our licensed database are recorded against drug classes, not just single drug names. Lorazepam is filed under 5 classifications — including benzodiazepines, anticonvulsants, glucuronidated drugs. Lion's Mane Mushroom has documented interactions with 3 drug classes — the most serious being anticoagulant/antiplatelet drugs (moderate), antidiabetes drugs (moderate) and immunosuppressants (moderate) — and none of Lorazepam’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Lion's Mane Mushroom Does Interact With Other Medications

Lion's Mane Mushroom has 327 moderate known drug interactions in our database — Lorazepam isn’t one of them. If you take anything else, check it against the full list below.

Moderate 327 No known interaction 2,503 (incl. Lorazepam)
Taking anything else?

Check Another of Your Medications Against Lion's Mane Mushroom

Covers the 2,830 medications we’ve checked against Lion's Mane Mushroom. Pick one to open its full report.

What to actually watch for

What Lion's Mane Mushroom Itself Has Been Linked To

This is not an interaction — nothing below involves Lorazepam. It is the side-effect record for Lion's Mane Mushroom on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Lion's Mane Mushroom, this list is the first place to look.

  • Stomach upset / Nausea Additional detail

    “Orally, lion's mane mushroom may cause gastrointestinal discomfort and nausea.”

    Lion's Mane Mushroom · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    2 sources cited
    1. 91999. 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.
    2. 105546. 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
  • A skin rash Additional detail

    Recorded for Lion's Mane Mushroom in the same Natural Medicines adverse-effect record shown under Stomach upset / Nausea above.

Everything above comes from the Natural Medicines adverse-effect record for Lion's Mane Mushroom — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Lorazepam’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Lorazepam column appears here.

Overlapping uses

What Lorazepam Is Prescribed For, and What Lion's Mane Mushroom Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Lorazepam is a prescription medicine with approved uses on its FDA label. Lion's Mane Mushroom is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Lorazepam is prescribed for: Lorazepam tablets (Ativan and generic) and the oral solution are used to manage anxiety disorders or for short-term relief of anxiety symptoms, including anxiety that comes with depressive symptoms. Loreev XR, an extended-release capsule, is specifically indicated for adults with anxiety disorders who are already stable on lorazepam tablets taken three times daily. Ativan and generic lorazepam injections are used in two additional situations: treating status epilepticus (a medical emergency involving prolonged or repeated seizures) and as a pre-surgery medication in adults to produce sedation, ease anxiety, and reduce memory of events on the day of surgery.

Lion's Mane Mushroom has been studied for:

  • Memory studied, not established Lion's Mane Mushroom has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Lion's Mane Mushroom for memory

    Although there is interest in using oral lion's mane mushroom for memory, there is insufficient reliable information about the clinical effects of lion's mane mushroom for this purpose.

  • Anxiety studied, not established Lion's Mane Mushroom has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Lion's Mane Mushroom for anxiety

    Although there is interest in using oral lion's mane mushroom for anxiety, there is insufficient reliable information about the clinical effects of lion's mane mushroom for this condition.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Lorazepam on your own; if you are taking Lion's Mane Mushroom for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Lion's Mane Mushroom or Lorazepam

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Lion's Mane Mushroom or Lorazepam, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Lorazepam

This page covers Lion's Mane Mushroom only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lorazepam page lists 119 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: 1,4-butanediol (major), Activated Charcoal (major), Beer (major), Gamma-hydroxybutyrate (ghb) (major) and Grapefruit (major).

By severity: 8 major · 94 moderate · 17 minor.

From our pharmacist’s overview on the Lorazepam page

“Lorazepam (Ativan) works by slowing brain activity, and that is exactly why this list deserves real caution. Of the 119 supplement and herbal ingredients on file, 78 are themselves nervous-system depressants, so adding them can deepen drowsiness or, at the extreme, slow breathing.”

Reviewed by 2 · Jul 18, 2026

Open the Lorazepam interaction page

One more smart check

Taking Lion's Mane Mushroom as Part of a Dietary Supplement Product? Check It for Interactions

We hold 1,338 real supplement products containing Lion's Mane Mushroom, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Lion's Mane Mushroom. Even though Lion's Mane Mushroom itself has no known interaction with Lorazepam, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Lion's Mane Mushroom and Lorazepam Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Lion's Mane Mushroom
Top 25%

#166 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Lorazepam
Top 25%

#685 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Lion's Mane Mushroom reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Lion's Mane Mushroom and Lorazepam records this page draws on were last updated July 10, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Lion's Mane Mushroom

What is Lion's Mane Mushroom?

Lion's Mane Mushroom
  • Memory and cognitive support
  • Nerve health
  • Mood and anxiety
  • Immune support
  • General wellness/antioxidant

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 a food and supplement, but talk with your pharmacist or doctor before starting it, especially if you are pregnant, breastfeeding, or have allergies.

Hericium erinaceus · Hericiaceae · Fruiting body and mycelium · Capsules, powders, tablets, tinctures, teas, and as a culinary mushroom

An interaction check asks whether these two react with each other — it does not ask whether Lion's Mane Mushroom is a good idea for someone in your situation. Here is what our Lion's Mane Mushroom record says about it on its own.

Lion's Mane Mushroom: dosing

There is no official or standardized dose for lion's mane. The amounts used in studies have varied widely depending on the form (whole mushroom, fruiting body extract, or mycelium).The best advice is to follow the directions on the product label and not to exceed them. Because products differ a lot in strength and quality, look for brands that use third-party testing.

From our Lion's Mane Mushroom monograph — the full record covers uses, side effects and every documented interaction.

Read the full Lion's Mane Mushroom monograph & all interactions
Medication

About Lorazepam

What Is Lorazepam Used For?

Brand name: Ativan

Lorazepam tablets (Ativan and generic) and the oral solution are used to manage anxiety disorders or for short-term relief of anxiety symptoms, including anxiety that comes with depressive symptoms. Loreev XR, an extended-release capsule, is specifically indicated for adults with anxiety disorders who are already stable on lorazepam tablets taken three times daily.

Ativan and generic lorazepam injections are used in two additional situations: treating status epilepticus (a medical emergency involving prolonged or repeated seizures) and as a pre-surgery medication in adults to produce sedation, ease anxiety, and reduce memory of events on the day of surgery.

Most-Reported Side Effects for Lorazepam

From FAERS, the FDA’s public side-effect reporting system (178,727 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 13,822 reports
Nausea 13,647 reports
Diarrhea 10,647 reports
Dyspnea 9,489 reports
Anxiety 9,034 reports
See full Lorazepam drug information
Keep checking

Other Drugs & Lion's Mane Mushroom

Browse every other medication we’ve checked against Lion's Mane Mushroom — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
327Moderate
0Minor
2,502No known interaction
327 Moderate 2,502 No interaction
Moderate

327 interactions

Showing 60 of 327 moderate interactions — see all 327 on the Lion's Mane Mushroom page.

No interaction 2,502 drugs checked — show the list

We also checked Lion's Mane Mushroom against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,502 medications checked with no known interaction — see the full Lion's Mane Mushroom list.

See the full Lion's Mane Mushroom interactions page
See every supplement checked against Lorazepam, ranked by severity
Evidence & sources

Lion's Mane Mushroom References

The 6 references that drive our Lion's Mane Mushroom monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  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.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Lion's Mane Mushroom and Lorazepam Together: Common Questions

Is it safe to take Lion's Mane Mushroom with Lorazepam?
We do not list a known interaction between Lion's Mane Mushroom and Lorazepam. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Are Lion's Mane Mushroom and Lorazepam used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Lion's Mane Mushroom in each. That is a conversation for your prescriber, especially if Lorazepam is being adjusted to a target.
How was the Lion's Mane Mushroom and Lorazepam combination checked?
Interactions in our licensed database are recorded against drug classes. Lorazepam is filed under 5 classifications, and Lion's Mane Mushroom has documented interactions with 3 drug classes — none of Lorazepam's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Lion's Mane Mushroom interact with any other medications?
Yes. Lion's Mane Mushroom has 327 documented drug interactions in our database — Lorazepam is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Lorazepam interact with any supplements?
Yes. Lorazepam has documented interactions with 119 supplements in our database — Lion's Mane Mushroom is not one of them. The Lorazepam interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Lion's Mane Mushroom monograph Uses, safety profile, and every drug interaction in one place Lorazepam drug information The full plain-English guide to this medication Lorazepam supplement interactions Every supplement checked against Lorazepam, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 6 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Lorazepam and Lion's Mane Mushroom?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.