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Dietary supplement

Reishi Mushroom Blend Ingredients & Drug Interactions

by New Chapter

Reishi Mushroom Blend label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Reishi Mushroom Blend 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

Reishi Mushroom Blend is a dietary supplement by New Chapter with 1 active ingredient. Its ingredients are commonly taken for immune support, fatigue and general well-being, stress and sleep.Based on those ingredients, 375 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are organic Reishi. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Reishi Mushroom Blend by New Chapter

Ask about any prescription or over-the-counter medication and we check it for interactions with Reishi Mushroom Blend by New Chapter — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Reishi Mushroom Blend by New Chapter

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 Sep 10, 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 a single active ingredient: organic reishi mushroom. Reishi is a fungus traditionally used in herbal medicine, and this blend delivers it in capsule form with a capsule shell as the inactive ingredient.

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 Reishi Mushroom product and its label doesn't state a use — see Reishi 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 reishi in this product is limited. For high cholesterol (hyperlipidemia), it's rated possibly ineffective.

For altitude sickness, Alzheimer disease, and athletic performance, there isn't enough reliable evidence to rate whether it works. If you're considering reishi for one of these uses, talk it over with your doctor or pharmacist about what the evidence actually supports.

The evidence, ingredient by ingredient Reishi 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.

Orally, reishi mushroom is generally well tolerated in the short term, but long-term safety hasn't been well studied. The most common side effects are dizziness, dry mouth, itching, nausea, rash, and stomach upset.

Some people report respiratory allergy to reishi spores, sore throat, or runny nose. Rare effects include insomnia and headache.

Reishi is not recommended during pregnancy or breastfeeding — there isn't enough safety data to know either way. If you're pregnant, planning to become pregnant, or breastfeeding, talk with your doctor or pharmacist before taking this product.

Side effects, ingredient by ingredient Reishi 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 — Reishi Mushroom.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 375 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.

If you take blood thinners (anticoagulant or antiplatelet drugs), blood pressure medications, or diabetes medications, double-check with your doctor or pharmacist before adding reishi to your routine. Moderate interactions are documented with all three categories.

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.

Reishi may be worth considering if you're interested in traditional mushroom supplements and have no blood pressure, blood clotting, or diabetes medications to worry about. If you take any antihypertensive drugs, blood thinners, or diabetes medications, check with your doctor or pharmacist before starting this product — the interactions are real, even if the risk varies with dose.

Pregnant and breastfeeding people should avoid it.

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, 2021.

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 Reishi Mushroom Blend, straight from the product label.

Brand New Chapter
Net contents 60 Vegan Capsule(s)
Market status On market
Date entered into DSLD Aug 23, 2021
DSLD ID 253075
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Organic, Gluten 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 Reishi Mushroom Blend by New Chapter, 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
30
IngredientAmount% DV
organic Reishi1000 mg--

Other ingredients: Capsule

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.
Suggested/Recommended/Usage/Directions

Suggested use: Two tablets daily with food.

Precautions

Not recommended for use in children.

Caution: As with any dietary supplement, you should advise your healthcare professional of the use of this product. If you are nursing, pregnant, or considering pregnancy, you should consult your healthcare professional prior to using this product.

Discontinue use and contact your healthcare professional if you experience a side effect or an allergic reaction.

Do not exceed suggested use.

Keep out of reach of children.

Formulation

Certified gluten-free by NSF; Certified Vegan; No artificial flavors or colors.

Certified gluten-free by NSF; Certified Vegan; No artificial flavors or colors.

Healthy aging Formulated for absorption Vitality, healthy aging & longevity

ICS Certified Organic

Non GMO Project Verified nongmoproject.org Certified NSF Gluten-free

Certified Organic by International Certification Services, Inc., Medina, ND, USA

General Statements

Please refer to newchapter.com for more information about this product and its benefits.

The New Chapter Money-Back Guarantee We proudly stand behind every product we make. However, if you are not satisfied, please visit www.newchapter.com/guarantee for refund details.

Please recycle this bottle after use.

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.

Brand IP Statement(s)

Copyright 2020 New Chapter, Inc.

Formula

Made with organic Reishi mushrooms

OU (Kosher)

Seals/Symbols

ICS Certified Organic Non GMO Project Verified nongmoproject.org Certified NSF Gluten-free OU (Kosher)

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

Reishi Mushroom Blend by New Chapter label

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

Reishi Mushroom Blend 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 Reishi Mushroom Blend by New Chapter

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 container30 Amounts shown are per serving.

Organic Reishi

Interacts with
375 drugs
1000 mg per serving

Reishi is a traditional Asian mushroom widely used to support the immune system and overall wellness. Human evidence for most of its claimed benefits...

Organic Reishi monograph & interactions

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

Interaction report

Reishi Mushroom Blend by New Chapter Drug Interactions

Want to check YOUR meds against Reishi Mushroom Blend?

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
375Drugs
375 Moderate

Ingredients driving the most interactions

organic Reishi 375

Individual Drug Interactions

The ingredients in Reishi Mushroom Blend interact with 375 drugs. Click any drug to see the details.

1 of the 1 ingredient in Reishi Mushroom Blend interact with drugs. Each result below shows which ingredient is responsible. organic Reishi

Each ingredient & the kinds of drugs it affects

For each ingredient in Reishi Mushroom Blend 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.

organic Reishi3 drug types · 375 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, high doses of reishi mushroom might increase the risk of bleeding.
A dose of 1.5 grams daily of reishi mushroom does not seem to decrease platelet aggregation, but a higher dose of 3 grams daily does.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, reishi mushroom might have additive effects with antidiabetes drugs.
Animal research suggests that reishi mushroom decreases blood sugar. However, in patients with type 2 diabetes, taking reishi mushroom does not reduce fasting glucose levels, and its effects on glycated hemoglobin are inconsistent.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, concurrent use of reishi mushroom with antihypertensive drugs might increase the risk of hypotension.
Reishi mushroom has shown hypotensive activity in animal research. Clinical evidence suggests that reishi mushroom reduces blood pressure in some, but not all, patients with hypertension.

Likelihood Possible Evidence D
organic Reishi full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Reishi Mushroom Blend, from the product label.

New Chapter

See all New Chapter products
Name
New Chapter, Inc.
Street Address
90 Technology Dr.
City
Brattleboro
State
VT
ZipCode
05301
Phone Number
888-874-4461
Pharmacist Counseling Corner

Reishi Mushroom Blend by New Chapter: Common Questions

Does Reishi Mushroom Blend by New Chapter interact with any medications?
Yes. Based on its ingredients, Reishi Mushroom Blend has a known interaction with 375 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Reishi Mushroom Blend 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 on a blood pressure medication?
There's a documented moderate interaction. Reishi can lower blood pressure, so combining it with your medication might push your blood pressure too low. Check with your doctor or pharmacist before starting — they can decide whether it's right for you and at what dose.
What's the most common side effect?
Dizziness, dry mouth, itching, nausea, rash, and stomach upset are the most commonly reported. Most people tolerate it well in the short term, but keep an eye on how you feel.
Is reishi proven to work for anything?
The evidence is weak. For high cholesterol, it's rated possibly ineffective. For altitude sickness, Alzheimer disease, and athletic performance, there simply isn't enough reliable evidence to say whether it helps.
Can I take this while breastfeeding?
No — there isn't enough safety data to know either way, so it's best avoided while breastfeeding. Talk with your doctor or pharmacist if you want to know more about your options.
What is reishi mushroom?
Reishi is a fungus used traditionally in herbal medicine. This blend contains organic reishi in capsule form.
If I'm on a blood thinner, is this a no-go?
There's a moderate interaction — at higher doses, reishi may increase bleeding risk. This doesn't automatically mean you can't take it, but you need to clear it with your doctor or pharmacist first.

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

Not sure if Reishi Mushroom Blend 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.

Reishi Mushroom Blend label
Go deeper

The Full Monographs Behind Reishi Mushroom Blend’s Ingredients

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

Herb & supplement monograph

Reishi Mushroom

Interacts with 375 drugs

Reishi is a traditional Asian mushroom widely used to support the immune system and overall wellness. Human evidence for most of its claimed benefits is limited or low-quality, so it should...

Read the full Reishi Mushroom monograph →
Sources

Sources & How We Checked

Reishi Mushroom Blend'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 17 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.

Reishi Mushroom 17 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Tao J, Feng KY. Experimental and clinical studies on inhibitory effect of ganoderma lucidum on platelet aggregation. J Tongji Med Univ 1990;10:240-3. PubMed
  3. Singh AB, Gupta SK, Pereira BM, Prakash D. Sensitization to Ganoderma lucidum in patients with respiratory allergy in India. Clin Exp Allergy 1995;25:440-7.
  4. Lee SY, Rhee HM. Cardiovascular effects of mycelium extract of Ganoderma lucidum: inhibition of sympathetic outflow as a mechanism of its hypotensive action. Chem Pharm Bull (Tokyo) 1990;38:1359-64. PubMed
  5. Kwok Y, Ng KFJ, Li, CCF, et al. A prospective, randomized, double-blind, placebo-controlled study of the platelet and global hemostatic effects of Ganoderma lucidum (Ling-Zhi) in healthy volunteers. Anesth Analg 2005;101:423-6. PubMed
  6. Wanmuang, H., Leopairut, J., Kositchaiwat, C., Wananukul, W., and Bunyaratvej, S. Fatal fulminant hepatitis associated with Ganoderma lucidum (Lingzhi) mushroom powder. J Med Assoc Thai. 2007;90(1):179-181.
  7. Seto, S. W., Lam, T. Y., Tam, H. L., Au, A. L., Chan, S. W., Wu, J. H., Yu, P. H., Leung, G. P., Ngai, S. M., Yeung, J. H., Leung, P. S., Lee, S. M., and Kwan, Y. W. Novel hypoglycemic effects of Ganoderma lucidum water-extract in obese/diabetic (+db/+db
  8. Chu, T. T., Benzie, I. F., Lam, C. W., Fok, B. S., Lee, K. K., and Tomlinson, B. Study of potential cardioprotective effects of Ganoderma lucidum (Lingzhi): results of a controlled human intervention trial. Br.J.Nutr. 2012;107(7):1017-1027.
  9. Jin, X., Ruiz, Beguerie J., Sze, D. M., and Chan, G. C. Ganoderma lucidum (Reishi mushroom) for cancer treatment. Cochrane.Database.Syst.Rev. 2012;6:CD007731.
  10. Kabir, Y., Kimura, S., and Tamura, T. Dietary effect of Ganoderma lucidum mushroom on blood pressure and lipid levels in spontaneously hypertensive rats (SHR). J Nutr Sci Vitaminol.(Tokyo) 1988;34(4):433-438. PubMed
  11. Kanmatsuse, K., Kajiwara, N., Hayashi, K., Shimogaichi, S., Fukinbara, I., Ishikawa, H., and Tamura, T. [Studies on Ganoderma lucidum. I. Efficacy against hypertension and side effects]. Yakugaku Zasshi 1985;105(10):942-947. PubMed
  12. Gao, Y., Lan, J., Dai, X., Ye, J., and Zhou, S. A Phase I/II Study of Ling Zhi Mushroom Ganoderma lucidum(W.Curt: Fr.) Lloyd (Aphyllophoromycetideae) Extract in Patients with Type II Diabetes Mellitus. International Journal of Medicinal Mushrooms 2004;6. DOI
  13. Jin H, Zhang G, Cao X, and et al. Treatment of hypertension by linzhi combined with hypotensor and its effects on arterial, arteriolar and capillary pressure and microcirculation. In: Niimi H, Xiu RJ, Sawada T, and et al. Microcirculatory Approach to Asi
  14. Klupp NL, Chang D, Hawke F, Kiat H, Cao H, Grant SJ, Bensoussan A. Ganoderma lucidum mushroom for the treatment of cardiovascular risk factors. Cochrane Database Syst Rev. 2015 Feb 17;2:CD007259. PubMed
  15. Zhao H, Zhang Q, Zhao L, Huang X, Wang J, Kang X. Spore Powder of Ganoderma lucidum Improves Cancer-Related Fatigue in Breast Cancer Patients Undergoing Endocrine Therapy: A Pilot Clinical Trial. Evid Based Complement Alternat Med. 2012;2012:809614.
  16. Pazzi F, Adsuar JC, Domínguez-Muñoz FJ, García-Gordillo MA, Gusi N, Collado-Mateo D. Ganoderma lucidum effects on mood and health-related quality of life in women with fibromyalgia. Healthcare (Basel) 2020;8(4):520. PubMed
  17. Kogure T, Koiwai A, Fukushi D, et al. Hypereosinophilia with hepatic nodule formation caused by Ganoderma lucidum. Intern Med 2021;60(24):3897-3903.

See these in context on the Reishi 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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