Interactions on record — worth a quick check against your medications. Based on 3 of 7 ingredients. Check your meds →
Dietary supplement

Chag-o-Power Ingredients & Drug Interactions

by North American Herb & Spice

Chag-o-Power label
See full label image
Liquid Category: Other Combinations
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 Chag-o-Power 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

Chag-o-Power is a dietary supplement by North American Herb & Spice with 7 active ingredients. Its ingredients are commonly taken for heart health, high blood pressure, high cholesterol.Based on those ingredients, 327 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Wild, raw Chaga Mushroom, Oregano Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Chag-o-Power by North American Herb & Spice

Ask about any prescription or over-the-counter medication and we check it for interactions with Chag-o-Power by North American Herb & Spice — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Chag-o-Power by North American Herb & Spice

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 12, 2026

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 7 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label doesn't break down how much of each component you get.

Chag-o-Power is a 7-ingredient liquid supplement featuring extra virgin olive oil, oregano oil (in two forms — straight oil and mycellized), and chaga mushroom (listed as wild raw chaga and Siberian black chaga). The oregano and chaga are the active herbal components; the olive oil is also listed as active.

Water and a spice oil emulsion round out the formula, along with a proprietary blend whose specific proportions are not disclosed. There are no inactive fillers or excipients listed.

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.

Why this rating?
  • The label markets this product for: immune support and antioxidant support.
  • We looked for evidence on: Coronavirus disease 2019 (COVID-19), Exercise-induced respiratory infections, Influenza, Upper respiratory tract infection (URTI), General wellness, Inflammation support.
  • The closest evidence on file: Olive is rated "Insufficient Reliable Evidence To Rate" for Exercise-induced respiratory infections (Natural Medicines).
  • Also on file: Olive is rated "Insufficient Reliable Evidence To Rate" for Influenza.
  • Also on file: Oregano is rated "Insufficient Reliable Evidence To Rate" for Upper respiratory tract infection (URTI).

The evidence base for most ingredients in this product is limited. Extra virgin olive oil, oregano, and chaga mushroom are all rated as having insufficient reliable evidence to support claims about conditions like cardiovascular disease, diabetes, infections, and inflammation-related issues.

Because the research hasn't yet established whether these ingredients work for their common uses, we can't tell you this product will deliver results for any specific health goal.

The evidence, ingredient by ingredient Olive Oregano 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 3 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Oregano oil is generally well tolerated when used in food amounts, but concentrated supplement forms are less studied. The most common side effect is stomach upset.

Rare but serious allergic reactions (including anaphylaxis) have been reported in sensitive people. Chaga, too, is generally safe in typical food and tea amounts, though human safety data are limited.

Excessive chaga consumption carries a risk of kidney problems due to its high oxalate content — a few cases of kidney failure and acute kidney injury have been reported. Olive oil as a food is very safe, but concentrated supplements are less studied.

Headache and stomach discomfort are the most common side effects with olive in clinical trials.

Side effects, ingredient by ingredient Olive Oregano 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?
  • 2 of the 3 matched ingredients can interact with medications — Oregano, 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 you take this, double-check if you're on blood thinners or antiplatelet drugs like warfarin or clopidogrel — oregano oil may increase bleeding risk. If you take antidiabetes medications (insulin, metformin, or others), chaga and oregano both carry a Moderate risk of pushing blood sugar too low.

If you're on immunosuppressant drugs (for transplant, autoimmune disease, or other reasons), chaga may theoretically interfere with their effect. Run your exact medications through the checker on this page.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

If you're on blood thinners, antidiabetic drugs, or immunosuppressants, check with your pharmacist before starting Chag-o-Power — the oregano and chaga carry Moderate-severity interactions with all three drug types. The evidence for what this product actually does for your health isn't established yet.

Because oregano is not recommended in supplement amounts during pregnancy and chaga is best avoided in pregnancy and lactation due to limited safety data, pregnant or nursing women should talk to their doctor first.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 5 of 7 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 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 Chag-o-Power, straight from the product label.

Brand North American Herb & Spice
Barcode (UPC) 635824005247
Net contents 2 Fluid Ounce(s); 60 Milliliter(s)
Market status On market
Date entered into DSLD Jun 16, 2022
DSLD ID 269229
Product type Other Combinations
Supplement form Liquid
Dietary claims / uses Nutrient, All Other, Structure/Function
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 Chag-o-Power by North American Herb & Spice, 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:
20 Drop(s)
Maximum serving Sizes:
20 Drop(s)
Servings per container
88
UPC/BARCODE
635824005247
IngredientAmount% DV
Proprietary Blend0 NP--
Water0 NP--
Extra Virgin Olive Oil0 NP--
Oregano Oil0 NP--
Wild, raw Chaga Mushroom0 NP--
Spice Oil emulsion0 NP--
Siberian Black Chaga0 NP--
mycellized Oregano Oil0 NP--

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

Directions: Take 20 or more drops under the tongue or in juice/yogurt daily.

Shake before using.

Storage

Refrigerate after opening. Best if used within 30 days of opening.

Formula

Chag-o-Power is the power of raw, wild, emulsified chaga mushroom. Chaga is a natural source of betulin and betulinic acid, which are natural sterols of high electrical charge that are needed by cell membranes. The sterols in chaga are heart-healthy. Chag-o-Power is also a top source of wild SOD (superoxide dismutase).

Wild, raw, emulsified chaga mushroom Top source of SOD, beta glucan, & plant sterols Natural source of betulin & betulinic acid

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

Deep Forest Source

Wild Source 100% Raw High Orac

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

Chag-o-Power by North American Herb & Spice label

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

Chag-o-Power 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 Chag-o-Power by North American Herb & Spice

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

Serving size20 Drop(s) Dosage formLiquid Servings per container88 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Blend

0 NP per serving
Interaction report

Chag-o-Power by North American Herb & Spice Drug Interactions

Want to check YOUR meds against Chag-o-Power?

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

Wild, raw Chaga Mushroom 327
Oregano Oil 208

Individual Drug Interactions

The ingredients in Chag-o-Power interact with 327 drugs. Click any drug to see the details.

2 of the 7 ingredients in Chag-o-Power interact with drugs. Each result below shows which ingredient is responsible. Wild, raw Chaga Mushroom Oregano Oil

Each ingredient & the kinds of drugs it affects

For each ingredient in Chag-o-Power with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Wild, raw Chaga Mushroom3 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
Wild, raw Chaga Mushroom full monograph & interactions

Oregano Oil2 drug types · 208 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, oregano might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro research shows that aristolochic acid isolated from oregano leaves has antithrombin activity. It has also been reported that oregano oil inhibits arachidonic acid-induced, and ADP-induced, platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, oregano might increase the risk for hypoglycemia when taken with antidiabetes drugs.
In vitro and animal research shows that oregano extracts might lower blood glucose levels.

Likelihood Possible Evidence D
Oregano Oil full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Chag-o-Power, from the product label.

North American Herb & Spice

See all North American Herb & Spice products
Name
North American Herb & Spice
Street Address
13900 W. Polo Trail Drive
City
Lake Forest
State
IL
ZipCode
60045
Phone Number
1-800-243-5242
Web Address
www.oreganol.com
Pharmacist Counseling Corner

Chag-o-Power by North American Herb & Spice: Common Questions

Does Chag-o-Power by North American Herb & Spice interact with any medications?
Yes. Based on its ingredients, Chag-o-Power 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?
Chag-o-Power contains 7 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Is oregano oil in this product the same as oregano seasoning I use in cooking?
No. The oregano in Chag-o-Power is a concentrated supplement form, which is much stronger and more potent than the dried herb you'd sprinkle on food. Oregano as a spice is very safe, but concentrated oregano oil supplements haven't been studied as thoroughly, so it's a different safety picture.
What are the side effects I should watch for?
The most common ones are stomach upset and headache. Rarely, some people have had allergic reactions, including serious ones like swelling of the lips and tongue or trouble breathing. If you notice any unusual symptoms after starting this, stop and talk to your pharmacist right away.
Can I take this if I'm pregnant or breastfeeding?
The facts advise against medicinal amounts of oregano during pregnancy and against chaga during both pregnancy and breastfeeding due to not enough safety information. If you're pregnant or nursing, talk with your doctor or pharmacist for personalized advice before starting this product.
Does this product actually work for anything?
The evidence we hold doesn't yet establish whether oregano, chaga, or olive oil in this product work for any specific health condition. All three are rated as having insufficient reliable evidence, so we can't tell you it will deliver results for a particular goal.
Why is chaga listed twice in the ingredient list?
The product contains two forms of chaga — wild, raw chaga mushroom and Siberian black chaga — but they're the same ingredient in different preparations. Both have the same interaction and safety profile.
What is the proprietary blend, and why isn't it broken down?
The proprietary blend is a combination of ingredients whose exact amounts aren't disclosed — manufacturers keep those ratios private. The individual herbs it contains are listed separately, so we can check those for interactions and safety, but we can't tell you exactly how much of each is in your dose.

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

Not sure if Chag-o-Power is safe with your meds?

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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.

Chag-o-Power label
Go deeper

The Full Monographs Behind Chag-o-Power’s Ingredients

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

Herb & supplement monograph

Olive

Olive comes from the same tree that gives us olives and olive oil, and its leaf and fruit contain antioxidant compounds like oleuropein and hydroxytyrosol. Olive oil as part of a Mediterrane...

Read the full Olive monograph → Herb & supplement monograph

Oregano

Interacts with 208 drugs

Oregano is a common Mediterranean cooking herb that is also sold as a concentrated oil or supplement, often standardized for a compound called carvacrol. While lab studies suggest it may hav...

Read the full Oregano monograph → 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

Chag-o-Power'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 23 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.

Olive 2 references
  1. Liccardi G, D'Amato M, D'Amato G. Oleaceae pollinosis: a review. Int Arch Allergy Immunol 1996;111:210-7. PubMed
  2. Somerville V, Moore R, Braakhuis A. The effect of olive leaf extract on upper respiratory illness in high school athletes: A randomised control trial. Nutrients. 2019;11(2). pii: E358. PubMed

See these in context on the Olive monograph →

Oregano 12 references
  1. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  2. Benito M, Jorro G, Morales C, et al. Labiatae allergy: systemic reactions due to ingestion of oregano and thyme. Ann Allergy Asthma Immunol 1996;76:416-8. PubMed
  3. Chevallier A. Encyclopedia of Herbal Medicine. 2nd ed. New York, NY: DK Publ, Inc., 2000.
  4. Ciganda C, and Laborde A. Herbal infusions used for induced abortion. J Toxicol.Clin Toxicol. 2003;41:235-239. PubMed
  5. Futrell, J. M. and Rietschel, R. L. Spice allergy evaluated by results of patch tests. Cutis 1993;52(5):288-290.
  6. Tognolini, M., Barocelli, E., Ballabeni, V., Bruni, R., Bianchi, A., Chiavarini, M., and Impicciatore, M. Comparative screening of plant essential oils: phenylpropanoid moiety as basic core for antiplatelet activity. Life Sci. 2-23-2006;78(13):1419-1432. PubMed
  7. Goun, E., Cunningham, G., Solodnikov, S., Krasnykch, O., and Miles, H. Antithrombin activity of some constituents from Origanum vulgare. Fitoterapia 2002;73(7-8):692-694. PubMed
  8. Lemhadri, A., Zeggwagh, N. A., Maghrani, M., Jouad, H., and Eddouks, M. Anti-hyperglycaemic activity of the aqueous extract of Origanum vulgare growing wild in Tafilalet region. J Ethnopharmacol. 2004;92(2-3):251-256. PubMed
  9. McCue, P., Vattem, D., and Shetty, K. Inhibitory effect of clonal oregano extracts against porcine pancreatic amylase in vitro. Asia Pac.J Clin.Nutr. 2004;13(4):401-408.
  10. Ragi, J., Pappert, A., Rao, B., Havkin-Frenkel, D., and Milgraum, S. Oregano extract ointment for wound healing: a randomized, double-blind, petrolatum-controlled study evaluating efficacy. J.Drugs Dermatol. 2011;10(10):1168-1172.
  11. Singletary K. Oregano: overview of the literature on health benefits. Nutrition Today 2010;45(3):129-38.
  12. Silva MLAE, Lucarini R, Dos Santos FF, et al. Hypoglycemic effect of rosmarinic acid-rich infusion (RosCE) from Origanum vulgare in alloxan-induced diabetic rats. Nat Prod Res 2022;36(17):4525-4531.

See these in context on the Oregano monograph →

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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