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Dietary supplement

Chaga Capsules Ingredients & Drug Interactions

by Real Mushrooms

Chaga Capsules label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Chaga Capsules 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

Chaga Capsules is a dietary supplement by Real Mushrooms with 1 active ingredient. Its ingredients are commonly taken for immune support, antioxidant support, general wellness/tonic.Based on those ingredients, 327 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Chaga Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Chaga Capsules by Real Mushrooms

Ask about any prescription or over-the-counter medication and we check it for interactions with Chaga Capsules by Real Mushrooms — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Chaga Capsules by Real 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 Jul 16, 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: chaga extract. Chaga is a fungus that grows on birch trees and has been used traditionally in teas and foods.

The extract form concentrates its active compounds into a capsule for easier dosing. The capsule also contains inactive ingredients — hypromellose (a capsule material), silicon dioxide, and microcrystalline cellulose — that help hold the extract together and form the capsule itself.

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 Chaga product and its label doesn't state a use — see Chaga'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 we hold doesn't establish how well chaga works for any condition. For cardiovascular disease, diabetes, and COVID-19, the effectiveness ratings are insufficient reliable evidence to rate — meaning there isn't solid data yet on whether it actually does what people use it for.

If you're considering chaga for a specific health goal, talk it over with your doctor or pharmacist about what the evidence shows so far.

The evidence, ingredient by ingredient Chaga

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.

Chaga is generally used in foods and teas, but human safety data are limited. There have been two reported cases of kidney failure and one case of acute kidney injury tied to excessive chaga consumption — chaga contains high concentrations of oxalate, a compound that can build up in the kidneys.

The safety data advise against using chaga during pregnancy and while breastfeeding because there isn't enough information to know it's safe. 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 Chaga

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 — Chaga.
  • 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.

Before taking Chaga Capsules, double-check with your doctor or pharmacist if you take blood thinners or antiplatelet drugs (like warfarin, aspirin, or clopidogrel), immunosuppressive medications, or antidiabetes drugs. The interactions are theoretical but rated Moderate and haven't been confirmed in humans — that's exactly why you need to confirm your specific situation with your own provider.

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.

Chaga Capsules might appeal to someone interested in traditional mushroom extracts, but the effectiveness evidence isn't established for most uses. If you take blood thinners, immunosuppressants, or diabetes medications, you'll want to check with your doctor or pharmacist before starting — the interactions are theoretical but rated moderate.

Pregnant and breastfeeding individuals should avoid it due to lack of safety data. Run your full medication list through the checker on this page and talk it over with your own healthcare provider.

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 Oct 24, 2022.

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 Chaga Capsules, straight from the product label.

Brand Real Mushrooms
Barcode (UPC) 628110068064
Net contents 120 Capsule(s)
Market status On market
Date entered into DSLD Oct 24, 2022
DSLD ID 275731
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), 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 Chaga Capsules by Real 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
628110068064
IngredientAmount% DV
Chaga Extract1000 mg--

Other ingredients: Hypromellose, Silicon Dioxide, Microcrystalline Cellulose, May contain

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.
General Statements

Our quality commitment to you

Learn more at realmushrooms.com/prop-65

NPN#80090958

Formula

Made with organic mushroom extracts

Guaranteed potency: greater than 8% beta-glucans

Mushroom extract powder

Formulation

Made with organic mushroom extracts

3rd party lab verified for quality

Gluten free Non GMO

Vegan

Our guarantee: This product is verified for active compounds. There are no added starch, grains or mycelium.

Digestive health

Quality grown Verified for active compounds

Suggested/Recommended/Usage/Directions

Suggested use: Adults take 2 capsules per day.

Storage

Storage: Store in a cool dry place with the lid securely closed.

Precautions

Warning: Keep out of reach of children.

Consult a physician if you are pregnant or nursing; have or had a medical condition; or are taking prescription drugs.

Warning: Consuming this product can expose you to chemicals including lead, which is known to the State of California to cause birth defects or reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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.

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

Chaga Capsules by Real Mushrooms label

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

Chaga Capsules 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 Chaga Capsules by Real 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.

Chaga Extract

Interacts with
327 drugs
1000 mg per serving Form: Beta-1,3-1,6-Glucan

Chaga is a fungus that grows mostly on birch trees and is used as a tea or supplement, mainly for immune and antioxidant support. Human evidence for i...

Chaga Extract monograph & interactions

Other (inactive) ingredients: Hypromellose, Silicon Dioxide, Microcrystalline Cellulose, May contain. These complete the product’s ingredient list but are not active constituents.

Interaction report

Chaga Capsules by Real Mushrooms Drug Interactions

Want to check YOUR meds against Chaga Capsules?

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

Chaga Extract 327

Individual Drug Interactions

The ingredients in Chaga Capsules interact with 327 drugs. Click any drug to see the details.

1 of the 1 ingredient in Chaga Capsules interact with drugs. Each result below shows which ingredient is responsible. Chaga Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Chaga Capsules 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.

Chaga Extract3 drug types · 327 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, chaga may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro and animal research suggests that chaga extract can inhibit platelet aggregation. This effect has not been reported in humans.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, taking chaga with antidiabetes drugs might increase the risk of hypoglycemia.
Animal research suggests that chaga might decrease blood glucose levels and increase insulin levels. This has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, chaga might interfere with immunosuppressive therapy.
In vitro research suggests that certain constituents of chaga stimulate immune function. This has not been reported in humans.

Likelihood Possible Evidence D
Chaga Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Chaga Capsules, from the product label.

Real Mushrooms

See all Real Mushrooms products
Name
Real Mushrooms Inc.
Street Address
Box 77
City
Roberts Creek
State
BC
ZipCode
V0N 2W0
Phone Number
1-800-263-4387
Web Address
realmushrooms.com
Pharmacist Counseling Corner

Chaga Capsules by Real Mushrooms: Common Questions

Does Chaga Capsules by Real Mushrooms interact with any medications?
Yes. Based on its ingredients, Chaga Capsules 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?
Chaga Capsules 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 while I'm pregnant or breastfeeding?
The safety data advise against chaga during pregnancy and while breastfeeding because there isn't enough information to know it's safe either way. Talk with your doctor or pharmacist before taking it — they can weigh your individual situation.
Does chaga actually work for blood sugar or heart health?
We don't have reliable evidence yet that chaga works for diabetes, cardiovascular disease, or COVID-19. If you're considering it for a health condition, your doctor or pharmacist can fill you in on what's known so far.
What are the side effects?
There have been rare reports of kidney failure and acute kidney injury tied to very high chaga consumption — chaga is high in oxalate, which can stress the kidneys. Human safety data are limited overall, so side effects beyond those cases aren't well documented.
How much chaga is in each capsule?
The product facts provided don't include the dose per capsule. Check the label on the bottle or contact the manufacturer for the exact amount of chaga extract in each dose.
Is this 'all-natural' or free of fillers?
The capsule contains inactive ingredients — hypromellose, silicon dioxide, and microcrystalline cellulose — that hold the extract together and form the capsule. These are standard capsule materials, not active ingredients.

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

Not sure if Chaga Capsules 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.

Chaga Capsules label
Go deeper

The Full Monographs Behind Chaga Capsules’s Ingredients

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

Herb & supplement monograph

Chaga

Interacts with 327 drugs

Chaga is a fungus that grows mostly on birch trees and is used as a tea or supplement, mainly for immune and antioxidant support. Human evidence for its benefits is very limited, and it may...

Read the full Chaga monograph →
Sources

Sources & How We Checked

Chaga Capsules'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 9 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.

Chaga 9 references
  1. Sun JE, Ao ZH, Lu ZM, et al. Antihyperglycemic and antilipidperoxidative effects of dry matter of culture broth of Inonotus obliquus in submerged culture on normal and alloxan-diabetes mice. J Ethnopharmacol 2008;118(1):7-13. PubMed
  2. Hyun KW, Jeong SC, Lee DH, et al. Isolation and characterization of a novel platelet aggregation inhibitory peptide from the medicinal mushroom, Inonotus obliquus. Peptides 2006;27(6):1173-8. PubMed
  3. Kim YO, Han SB, Lee HW, et al. Immuno-stimulating effect of the endo-polysaccharide produced by submerged culture of Inonotus obliquus. Life Sci 2005;77(19):2438-56. PubMed
  4. Kikuchi Y, Seta K, Ogawa Y, et al. Chaga mushroom-induced oxalate nephropathy. Clin Nephrol 2014;81(6):440-4. PubMed
  5. Lee S, Lee HY, Park Y, et al. Development of end stage renal disease after long-term ingestion of chaga mushroom: case report and review of literature. J Korean Med Sci. 2020;35(19):e122.
  6. Kwon O, Kim Y, Paek JH, et al. Chaga mushroom-induced oxalate nephropathy that clinically manifested as nephrotic syndrome: A case report. Medicine (Baltimore) 2022;101(10):e28997. PubMed
  7. Su L, Xin C, Yang J, et al. A polysaccharide from Inonotus obliquus ameliorates intestinal barrier dysfunction in mice with type 2 diabetes mellitus. Int J Biol Macromol 2022;214:312-323. PubMed
  8. Chen S, Ma Y, Li H, et al. Anti-diabetic e?ects of Inonotus obliquus extract in high fat diet combined streptozotocin-induced type 2 diabetic mice. Nutr Hosp 2022;39(6):1256-1263. PubMed
  9. Ye X, Wu K, Xu L, et al. Methanol extract of Inonotus obliquus improves type 2 diabetes mellitus through modifying intestinal flora. Front Endocrinol (Lausanne) 2023;13:1103972. PubMed

See these in context on the Chaga 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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