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Dietary supplement

Reishi Extract 1000 mg Ingredients & Drug Interactions

by SuperSmart

Reishi Extract 1000 mg 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 Reishi Extract 1000 mg 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 Extract 1000 mg is a dietary supplement by SuperSmart 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 Reishi extract. 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 Extract 1000 mg by SuperSmart

Ask about any prescription or over-the-counter medication and we check it for interactions with Reishi Extract 1000 mg by SuperSmart — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Reishi Extract 1000 mg by SuperSmart

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 Jul 11, 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: reishi extract at 1000 mg per capsule. Reishi is a mushroom used in traditional medicine that's been studied for various health effects.

The capsule also contains two inactive ingredients — acacia gum and white rice flour — to hold the product 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 Reishi Mushroom's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Immune support, fatigue, stress and sleep.
  • We looked for evidence on: Chronic fatigue syndrome (CFS), Insomnia, Stress, Psychological well-being, General well-being, Sleep quality — and 2 related terms.
  • The closest evidence on file: Reishi Mushroom is rated "Insufficient Reliable Evidence To Rate" for Chronic fatigue syndrome (CFS) (Natural Medicines).
  • Also on file: Reishi Mushroom is rated "Insufficient Reliable Evidence To Rate" for Insomnia, Stress, Psychological well-being.

The data we hold shows reishi extract rated as possibly ineffective for high cholesterol (hyperlipidemia). For altitude sickness, Alzheimer disease, and athletic performance, there isn't enough reliable evidence to rate how well it works.

So we can't tell you whether this product will be effective for those uses based on the research available to us.

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.

Reishi extract is generally well tolerated in the short term, but long-term safety hasn't been well studied, so that's something to keep in mind if you're thinking of taking it for months or years. The most common side effects are dizziness, dry mouth, itching, nausea, rash, and stomach upset.

A small number of people have reported respiratory allergy to reishi spores, sore throat, runny nose, insomnia, and headache. There isn't enough safety data to know whether reishi is safe in pregnancy or while breastfeeding — the safety data advises against use in both situations.

Talk with your doctor or pharmacist if you're pregnant, planning to become pregnant, or nursing before you take this.

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.

Before taking this product, check your exact medications with the tool on this page if you're on blood thinners (anticoagulants) or antiplatelet drugs, blood pressure medications, or diabetes medications. Reishi at higher doses may increase bleeding risk, lower your blood pressure further, or add to blood sugar effects.

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 safety information is well characterized.

Reishi extract may be worth considering if you're curious about traditional mushroom supplements and don't take blood pressure, blood thinner, or diabetes medications. If you're on any of those drugs, or if you're pregnant or nursing, check with your pharmacist before starting.

Long-term safety data is limited, so this is something to discuss with your healthcare provider if you plan to take it for a while.

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 May 24, 2023.

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 Extract 1000 mg, straight from the product label.

Brand SuperSmart
Barcode (UPC) 5453003826422
Net contents 60 Vegetarian Capsule(s)
Market status On market
Date entered into DSLD May 24, 2023
DSLD ID 285359
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years)
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 Extract 1000 mg by SuperSmart, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
30
UPC/BARCODE
5453003826422
IngredientAmount% DV
Reishi extract1000 mg--

Other ingredients: Acacia Gum, White Rice Flour

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.
FDA Statement of Identity

Dietary Supplement

Formula

Reishi Extract 1000 mg per day

Each vegetarian capsule contains 500 mg of reishi extract.

Suggested/Recommended/Usage/Directions

Recommended use: Adults. Take 1 capsule twice a day.

Precautions

Precautions: Do not exceed the recommended daily dose. This product is a nutritional supplement and should not replace a varied, balanced diet.

Keep out of childrens' reach.

As with any nutritional supplement, you should consult a health professional before taking this product if you are pregnant, breastfeeding or have a health problem.

Storage

Store away from direct light, heat and humidity.

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

See for yourself

Reishi Extract 1000 mg by SuperSmart label

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

Reishi Extract 1000 mg 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 Extract 1000 mg by SuperSmart

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container30 Amounts shown are per serving.

Reishi extract

Interacts with
375 drugs
1000 mg per serving Form: Polysaccharides, Triterpenes

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

Reishi extract monograph & interactions

Other (inactive) ingredients: Acacia Gum, White Rice Flour. These complete the product’s ingredient list but are not active constituents.

Interaction report

Reishi Extract 1000 mg by SuperSmart Drug Interactions

Want to check YOUR meds against Reishi Extract 1000 mg?

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

Reishi extract 375

Individual Drug Interactions

The ingredients in Reishi Extract 1000 mg interact with 375 drugs. Click any drug to see the details.

1 of the 1 ingredient in Reishi Extract 1000 mg interact with drugs. Each result below shows which ingredient is responsible. Reishi extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Reishi Extract 1000 mg 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.

Reishi extract3 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
Reishi extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Reishi Extract 1000 mg, from the product label.

SuperSmart

See all SuperSmart products
Name
SN Worldwide Unipessoal, Lda
Street Address
Avenida Do Infante 66, Edificio Quinta Avenida 1 C
City
Funchal
ZipCode
9000-015
Pharmacist Counseling Corner

Reishi Extract 1000 mg by SuperSmart: Common Questions

Does Reishi Extract 1000 mg by SuperSmart interact with any medications?
Yes. Based on its ingredients, Reishi Extract 1000 mg 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 Extract 1000 mg 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?
Not without checking first. Reishi has been shown to lower blood pressure in some people, so taking it with your blood pressure drug could theoretically lower your pressure too much. Run your exact medication through the checker on this page, then talk to your pharmacist about whether it's safe for you.
What are the most common side effects?
Dizziness, dry mouth, itching, nausea, rash, and stomach upset are the most common. Some people have also reported sore throat, runny nose, insomnia, or headache. Most people tolerate it well in the short term.
Is it safe to take while pregnant or breastfeeding?
No. There isn't enough safety data, so it's best avoided during pregnancy and while breastfeeding. Talk with your doctor if you're pregnant, planning to become pregnant, or nursing.
Does reishi actually work for high cholesterol?
The evidence we have rates it as possibly ineffective for that use. For other conditions like Alzheimer disease or athletic performance, there's not enough reliable evidence to know whether it works.
How long can I safely take this?
It's generally well tolerated short-term, but long-term safety hasn't been well studied, so we don't have solid data on whether it's safe for months or years. That's worth discussing with your pharmacist if you're thinking of taking it long-term.
Can I take this if I'm on blood thinners?
Possibly, but it depends on your dose. At 1.5 grams daily, reishi doesn't seem to affect bleeding. At higher doses like 3 grams daily, it might increase bleeding risk. Check with your pharmacist before starting, especially if you're on anticoagulants or antiplatelet drugs.

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.

Reishi Extract 1000 mg label
Go deeper

The Full Monographs Behind Reishi Extract 1000 mg’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 Extract 1000 mg'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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