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Dietary supplement

Propolis Extract EP300 Chewable Ingredients & Drug Interactions

by Terry Naturally

Tablet Or Pill Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Propolis Extract EP300 Chewable is a dietary supplement by Terry Naturally with 1 active ingredient. Its ingredients are commonly taken for cold sores and herpes lesions (topical), sore throat and mouth sores, wound and skin healing.Based on those ingredients, 921 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are EP300. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Propolis Extract EP300 Chewable by Terry Naturally

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

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: propolis (sold as EP300), a resinous compound made by honeybees. Propolis is used in supplements to support oral health and manage inflammation—particularly for mouth ulcers (oral mucositis) and cold sores.

The tablet also contains inactive ingredients like sucrose, chocolate and mint flavoring, gum arabic, and magnesium stearate as binders and fillers.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: immune support and upper respiratory health.
  • We looked for evidence on: Upper respiratory tract infection (URTI), Common cold, Herpes labialis (cold sores), Canker sores, Oral mucositis, Gingivitis — and 4 related terms.
  • The strongest evidence on file: Propolis is rated "Possibly Effective" for Herpes labialis (cold sores) (Natural Medicines).
  • Also on file: Propolis is rated "Possibly Effective" for Oral mucositis.
  • Also on file: Propolis is rated "Insufficient Reliable Evidence To Rate" for Common cold, Gingivitis, Upper respiratory tract infection (URTI), Periodontitis, and more.

Propolis has possibly effective evidence for two uses: oral mucositis (painful mouth ulcers) and herpes labialis (cold sores). The evidence isn't strong enough to call it proven, but clinical data supports its use for these conditions.

For diabetes, propolis is also rated possibly effective, though again the evidence is limited. For dengue fever, we hold insufficient reliable evidence to rate it one way or the other.

The evidence, ingredient by ingredient Propolis

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.

Propolis is generally well tolerated when taken by mouth short term. The most common side effect reported is mild headache—about 7% of people in a clinical trial experienced this at a dose of 250 mg twice daily over 4 months.

Allergic reactions are possible, especially in people who are sensitive to bee products; in rare cases these can be severe. If you're allergic to bees or bee products, this supplement isn't for you.

Not enough safety data exists for pregnancy or breastfeeding, so it's best to avoid it during these times.

Side effects, ingredient by ingredient Propolis

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 — Propolis.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 922 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 with your pharmacist if you're on blood thinners (anticoagulants) or antiplatelet drugs—propolis may raise your bleeding risk. Also double-check any medications broken down by your liver, including drugs processed by the CYP2C19, CYP2D6, CYP1A2, CYP2C9, CYP3A4, or CYP2E1 pathways.

If you take warfarin (Coumadin), propolis may make it less effective. Use the medication checker on this page to verify your specific drugs.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Propolis may help with cold sores and mouth ulcers if the evidence fits your needs. But it's not a casual add-on—it can interact with blood thinners and potentially affect how your liver processes many common medications.

Talk to your pharmacist or doctor before you start, especially if you take any prescription drugs or blood thinners.

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 Jan 23, 2025.

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 Propolis Extract EP300 Chewable, straight from the product label.

Brand Terry Naturally
Barcode (UPC) 367703240363
Net contents 60 Chewable Tablet(s)
Market status On market
Date entered into DSLD Jan 23, 2025
DSLD ID 325762
Product type Botanical
Supplement form Tablet Or Pill
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Children 4 or More Years of Age, Adult (18 - 50 Years), Gluten Free, Dairy 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 Propolis Extract EP300 Chewable by Terry Naturally, 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 Chewable Tablet(s)
Maximum serving Sizes:
1 Chewable Tablet(s)
Servings per container
60
UPC/BARCODE
367703240363
IngredientAmount% DV
Calories5 Calorie(s)--
Total Carbohydrates1 Gram(s)1%
Added Sugars1 Gram(s)2%
Total Sugars1 Gram(s)--
EP300100 mg--

Other ingredients: Sucrose, Gamma Cyclodextrin, Arabic Gum, Maltodextrin, Chocolate Flavor, Natural, Stearic Acid, Acacia Gum, Magnesium Stearate, Silica, Vanilla Flavor, Natural, Mint Flavor, Natural, natural Espresso flavor, Food Starch, Modified

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

Recommendations: Adults and children (4 years and up): 1 chewable tablet daily. May increase to 1 chewable tablet twice daily.

Precautions

If pregnant or nursing, consult a healthcare practitioner before use.

Formulation

Nature's Immune defender for you and your family Discover the immune-supporting benefits with Propolis Extract. Upper respiratory function Children's ear health Healthy bacterial balance Natural resistance Everyday wellness

Non GMO

Immune power from nature Chewable

Gamma Sorb

No salt, yeast, wheat, gluten, soy, dairy products, artificial coloring, artificial flavoring, or artificial preservatives.

General Statements

Money-back guarantee

Pleasant tasting

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

See for yourself

Propolis Extract EP300 Chewable by Terry Naturally label

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

What’s inside

The Ingredients in Propolis Extract EP300 Chewable by Terry Naturally

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

Serving size1 Chewable Tablet(s) Dosage formTablet Or Pill Servings per container60 Amounts shown are per serving.

EP300

Interacts with
921 drugs
100 mg per serving Form: Concentrated Bee Propolis Extract

Propolis is a natural, resin-like substance made by bees that has antimicrobial and anti-inflammatory properties in lab studies. Early research sugges...

EP300 monograph & interactions

Other (inactive) ingredients: Sucrose, Gamma Cyclodextrin, Arabic Gum, Maltodextrin, Chocolate Flavor, Natural, Stearic Acid, Acacia Gum, Magnesium Stearate, Silica, Vanilla Flavor, Natural, Mint Flavor, Natural, Natural Espresso flavor, Food Starch, Modified. These complete the product’s ingredient list but are not active constituents.

Interaction report

Propolis Extract EP300 Chewable by Terry Naturally Drug Interactions

Want to check YOUR meds against Propolis Extract EP300 Chewable?

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
921Drugs
921 Moderate

Ingredients driving the most interactions

EP300 921

Each ingredient & the kinds of drugs it affects

For each ingredient in Propolis Extract EP300 Chewable 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.

EP3008 drug types · 921 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, propolis might increase the risk of bleeding when taken with antiplatelet or anticoagulant drugs.
In vitro research shows that propolis water extract and the propolis constituent, caffeic acid phenethyl ester, can inhibit platelet aggregation. Additionally, evidence from an animal model shows that taking propolis in addition to warfarin decreases INR, suggesting that propolis can decrease the effectiveness of warfarin.

Likelihood Possible Evidence D
Cytochrome P450 1A2 (Cyp1A2) Substrates

Theoretically, high doses of propolis might increase blood levels of drugs metabolized by CYP1A2.
In vitro research shows that propolis extract can inhibit CYP1A2. However, animal research shows that propolis extract does not significantly affect CYP1A2 activity when administered to rats at doses up to 250 mg/kg. It is postulated that the constituents of propolis that inhibit CYP1A2 in vitro do not have significant effects in vivo due to low bioavailability and hepatic first-pass effect. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C19 (Cyp2C19) Substrates

Theoretically, high doses of propolis might increase blood levels of drugs metabolized by CYP2C19.
In vitro research shows that propolis extract can inhibit CYP2C19. However, animal research shows that propolis extract does not significantly affect CYP2C19 activity when administered to rats at doses up to 250 mg/kg. It is postulated that the constituents of propolis that inhibit CYP2C19 in vitro do not have significant effects in vivo due to low bioavailability and hepatic first-pass effect. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2C9 (Cyp2C9) Substrates

Theoretically, high doses of propolis might increase blood levels of drugs metabolized by CYP2C9.
In vitro research shows that propolis extract can inhibit CYP2C9. However, animal research shows that propolis extract does not significantly affect CYP2C9 activity when administered to rats at doses up to 250 mg/kg. It is postulated that the constituents of propolis that inhibit CYP2C9 in vitro do not have significant effects in vivo due to low bioavailability and hepatic first-pass effect. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Theoretically, high doses of propolis might increase blood levels of drugs metabolized by CYP2D6.
In vitro research shows that propolis extract can inhibit CYP2D6. However, animal research shows that propolis extract does not significantly affect CYP2D6 activity when administered to rats at doses up to 250 mg/kg. It is postulated that the constituents of propolis that inhibit CYP2D6 in vitro do not have significant effects in vivo due to low bioavailability and hepatic first-pass effect. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 2E1 (Cyp2E1) Substrates

Theoretically, propolis might increase levels of drugs metabolized by CYP2E1.
In vitro research shows that propolis can inhibit CYP2E1. This effect has not been reported in humans.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Substrates

Theoretically, high doses of propolis might increase blood levels of drugs metabolized by CYP3A4.
Some in vitro research shows that propolis extract can inhibit CYP3A4; however, other in vitro research shows that propolis has no effect on CYP3A4 activity. Furthermore, animal research shows that propolis extract does not significantly affect CYP3A4 activity when administered to rats at doses up to 250 mg/kg. It is postulated that the constituents of propolis that might in inhibit CYP3A4 in vitro do not have significant effects in vivo due to low bioavailability and hepatic first-pass effect. This effect has not been reported in humans.

Likelihood Possible Evidence D
Warfarin (Coumadin)

Theoretically, propolis might decrease the effectiveness of warfarin.
Animal research shows that taking propolis in addition to warfarin decreases the international normalized ratio (INR). This effect has not been reported in humans.

Likelihood Possible Evidence D
The maker

Brand information

Manufacturer and brand details for Propolis Extract EP300 Chewable, from the product label.

Terry Naturally

See all Terry Naturally products
Name
EuroPharma, Inc.
City
Green Bay
State
WI
ZipCode
54311
Phone Number
(866) 807-2731
Web Address
EuroPharmaUSA.com
Pharmacist Counseling Corner

Propolis Extract EP300 Chewable by Terry Naturally: Common Questions

Does Propolis Extract EP300 Chewable by Terry Naturally interact with any medications?
Yes. Based on its ingredients, Propolis Extract EP300 Chewable has a known interaction with 921 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Propolis Extract EP300 Chewable 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.
What is propolis and why is it in this supplement?
Propolis is a resinous compound honeybees produce. It's used in supplements because research shows it may help with mouth ulcers and cold sores, and possibly support blood sugar control. This product contains a standardized extract called EP300.
Can I take this if I'm pregnant or breastfeeding?
Not enough safety data exists for pregnancy, so it's best avoided then. There's possibly safe data for breastfeeding, but given the limited information overall, talk with your doctor or pharmacist before taking it if you're nursing.
What side effects should I watch for?
Most people tolerate it well. Mild headache is the most common side effect—about 7% of people in a trial reported it. Allergic reactions are possible, especially if you're sensitive to bee products. If you're allergic to bees, don't take this.
Does propolis actually work for cold sores and mouth ulcers?
Yes, the evidence supports it for both. It's rated possibly effective for cold sores and mouth ulcers based on clinical trials, though the evidence isn't as strong as a prescription treatment. Results vary from person to person.
Why do I need to check my medications with this?
Propolis can interfere with how your liver breaks down many common drugs and may increase bleeding risk if you take blood thinners. The search tool on this page will tell you if any of your specific medications are affected.
Is this product safe to use with my blood thinner?
Not necessarily. Propolis may increase bleeding risk with anticoagulants and antiplatelet drugs, and it may make warfarin less effective. Don't add this supplement without checking with your pharmacist or doctor first.

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

Not sure if Propolis Extract EP300 Chewable 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.

Propolis Extract EP300 Chewable label
Go deeper

The Full Monographs Behind Propolis Extract EP300 Chewable’s Ingredients

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

Sources

Sources & How We Checked

Propolis Extract EP300 Chewable'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 21 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.

Propolis 21 references
  1. Hay KD, Greig DE. Propolis allergy: a cause of oral mucositis with ulceration. Oral Surg Oral Med Oral Pathol 1990;70:584-6. PubMed
  2. Li YJ, Lin JL, Yang CW, Yu CC. Acute renal failure induced by a Brazilian variety of propolis. Am J Kidney Dis 2005;46:e125-9. PubMed
  3. Jensen CD, Andersen KE. Allergic contact dermatitis from cera alba (purified propolis) in a lip balm and candy. Contact Dermatitis 2006;55:312-3. PubMed
  4. Chen, T. G., Lee, J. J., Lin, K. H., Shen, C. H., Chou, D. S., and Sheu, J. R. Antiplatelet activity of caffeic acid phenethyl ester is mediated through a cyclic GMP-dependent pathway in human platelets. Chin J Physiol 6-30-2007;50(3):121-126.
  5. Hsu, C. Y., Chiang, W. C., Weng, T. I., Chen, W. J., and Yuan, A. Laryngeal edema and anaphalactic shock after topical propolis use for acute pharyngitis. Am J Emerg.Med 2004;22(5):432-433. PubMed
  6. Black, R. J. Vulval eczema associated with propolis sensitization from topical therapies treated successfully with pimecrolimus cream. Clin Exp.Dermatol. 2005;30(1):91-92. PubMed
  7. Matos D, Serrano P, Brandao FM. A case of allergic contact dermatitis caused by propolis-enriched honey. Contact Dermatitis 2015;72(1):59-60. PubMed
  8. Naramoto K, Kato M, Ichihara K. Effects of an ethanol extract of Brazilian green propolis on human cytochrome P450 enzyme activities in vitro. J Agric Food Chem 2014;62(46):11296-302. PubMed
  9. Nyman G, Hagvall L. A case of allergic contact cheilitis caused by propolis and honey. Contact Dermatitis 2016;74(3):186-7. PubMed
  10. Ryu CS, Oh SJ, Oh JM, et al. Inhibition of cytochrome P450 by propolis in human liver microsomes. Toxicol Res 2016;32(3):207-13. PubMed
  11. Akbay E, Özenirler Ç, Çelemli ÖG, Durukan AB, Onur MA, Sorkun K. Effects of propolis on warfarin efficacy. Kardiochir Torakochirurgia Pol. 2017;14(1):43-46. PubMed
  12. Lamoureux A, Meharon M, Durand AL, Darrigade AS, Doutre MS, Milpied B. A first case of erythema multiforme-like contact dermatitis caused by propolis. Contact Dermatitis. 2017;77(4):263-264. PubMed
  13. Piredda M, Facchinetti G, Biagioli V, et al. Propolis in the prevention of oral mucositis in breast cancer patients receiving adjuvant chemotherapy: A pilot randomised controlled trial. Eur J Cancer Care (Engl). 2017;26(6). PubMed
  14. Zhang YX, Yang TT, Xia L, Zhang WF, Wang JF, Wu YP. Inhibitory Effect of Propolis on Platelet Aggregation In Vitro. J Healthc Eng. 2017;2017:3050895. PubMed
  15. Nyman GSA, Tang M, Inerot A, Osmancevic A, Malmberg P, Hagvall L. Contact allergy to beeswax and propolis among patients with cheilitis or facial dermatitis. Contact Dermatitis 2019;81(2):110-6. PubMed
  16. Igarashi G, Segawa T, Akiyama N, et al. Efficacy of Brazilian propolis supplementation for japanese lactating women for atopic sensitization and nonspecific symptoms in their offspring: a randomized, double-blind, placebo-controlled trial. Evid Based Comp PubMed
  17. Soleimani D, Rezaie M, Rajabzadeh F, et al. Protective effects of propolis on hepatic steatosis and fibrosis among patients with nonalcoholic fatty liver disease (NAFLD) evaluated by real-time two-dimensional shear wave elastography: a randomized clinical
  18. D'Ercole MC. Prolonged use of propolis can increase liver enzymes. J Gastrointestin Liver Dis 2020;29(3):468-9. PubMed
  19. Cho E, Lee JD, Cho SH. Systemic contact dermatitis from propolis ingestion. Ann Dermatol. 2011;23(1):85-88. PubMed
  20. Hallajzadeh J, Milajerdi A, Amirani E, Attari VE, Maghsoudi H, Mirhashemi SM. Effects of propolis supplementation on glycemic status, lipid profiles, inflammation and oxidative stress, liver enzymes, and body weight: a systematic review and meta-analysis
  21. Gheflati A, Dehnavi Z, Ghannadzadeh Yazdi A, Khorasanchi Z, Raeisi-Dehkordi H, Ranjbar G. The effects of propolis supplementation on metabolic parameters: a systematic review and meta-analysis of randomized controlled clinical trials. Avicenna J Phytomed

See these in context on the Propolis 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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