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Dietary supplement

Bilberry Myrtille Ingredients & Drug Interactions

by Herbal Select

Bilberry Myrtille 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 Bilberry Myrtille 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

Bilberry Myrtille is a dietary supplement by Herbal Select with 1 active ingredient. Its ingredients are commonly taken for eye and vision health, antioxidant support, diarrhea and digestive upset.Based on those ingredients, 275 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bilberry. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Bilberry Myrtille by Herbal Select

Ask about any prescription or over-the-counter medication and we check it for interactions with Bilberry Myrtille by Herbal Select — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Bilberry Myrtille by Herbal Select

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: bilberry fruit extract. Bilberry is a small dark berry rich in anthocyanidins, plant compounds that give it antioxidant properties and have been studied for effects on vision, blood sugar, and blood clotting.

The capsule also contains inactive ingredients — gelatin, rice flour, and water — that serve as the capsule shell and filler.

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 Bilberry product and its label doesn't state a use — see Bilberry'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 bilberry's effectiveness is mixed and often limited. For night vision, the data shows it is possibly ineffective — meaning current research does not support its use for this purpose.

For age-related cognitive decline, age-related macular degeneration (AMD), atherosclerosis, high cholesterol (hyperlipidemia), and chronic venous insufficiency (difficulty with blood return from the legs), we have insufficient reliable evidence to rate whether it works. This means the research so far has been too small, short, or low-quality to draw firm conclusions.

The evidence, ingredient by ingredient Bilberry

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.

Bilberry fruit, juice, and extracts are generally well tolerated when taken orally. The most common side effects are dark-colored stools, gas, and mild stomach discomfort — some trial participants also reported temporary gastrointestinal upset.

Your tongue, teeth, or stools may turn dark bluish-black or dark green; this is harmless but can be striking. However, supplement-strength safety data is limited and long-term studies are sparse.

The safety notes advise against concentrated supplements because we don't have enough long-term safety information on those doses. Bilberry is rated likely safe in pregnancy and lactation.

Side effects, ingredient by ingredient Bilberry

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 — Bilberry.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 275 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 Bilberry Myrtille, double-check with your doctor or pharmacist if you're on blood thinners or antiplatelet drugs (such as warfarin, aspirin, or clopidogrel) — bilberry may raise bleeding risk. Also confirm if you take diabetes medications, since bilberry may lower blood sugar.

If you're on erlotinib (Tarceva) or other drugs metabolized through the CYP2E1 pathway, mention this supplement to your pharmacist.

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.

Bilberry Myrtille is one to check if you take blood thinners, diabetes medications, or cancer drugs like erlotinib — the interactions are documented and worth reviewing with your doctor or pharmacist before you start. The evidence that it actually works for vision or cognition is weak or absent.

If you choose to use it, expect dark stools and possible gas, and avoid it if you're on medications that affect bleeding or blood sugar without clearance from your 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 Feb 25, 2013.

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 Bilberry Myrtille, straight from the product label.

Brand Herbal Select
Barcode (UPC) 065279030035
Net contents 60 Capsule(s); 40 mg
Market status On market
Date entered into DSLD Feb 25, 2013
DSLD ID 17659
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 Bilberry Myrtille by Herbal Select, 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)
UPC/BARCODE
065279030035
IngredientAmount% DV
Bilberry40 mg--

Other ingredients: Gelatin, Rice Flour, Water

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 Disclaimer Statement

Statements not evaluated by FDA. Product not intended to diagnose, treat, cure, or prevent any disease.

General Statements

extract Potent-Max

Herbal Select use only guaranteed potency, standardized extracts or high potency natural concentrates and isolates to manufacture our potent-max extracts. This ensures that you get considered, effective results every time.

Standardized

Suggested/Recommended/Usage/Directions

Directions: Take 2 capsules 2-3 times daily with water.

Formulation

This product contains no added preservatives, colour, flavour, sugar, dairy, egg, wheat, soy, corn, starch or yeast.

Precautions

Do not use if seal is broken.

FDA Statement of Identity

A Dietary Supplement

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

See for yourself

Bilberry Myrtille by Herbal Select label

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

Bilberry Myrtille 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 Bilberry Myrtille by Herbal Select

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

Serving size2 Capsule(s) Dosage formCapsule Amounts shown are per serving.

Bilberry

Interacts with
275 drugs
40 mg per serving Form: Anthocyanidins

Bilberry is a blueberry-like fruit rich in antioxidant plant compounds called anthocyanins, and it has a long history of traditional use for eye healt...

Bilberry monograph & interactions

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

Interaction report

Bilberry Myrtille by Herbal Select Drug Interactions

Want to check YOUR meds against Bilberry Myrtille?

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
275Drugs
275 Moderate

Ingredients driving the most interactions

Bilberry 275

Individual Drug Interactions

The ingredients in Bilberry Myrtille interact with 275 drugs. Click any drug to see the details.

1 of the 1 ingredient in Bilberry Myrtille interact with drugs. Each result below shows which ingredient is responsible. Bilberry

Each ingredient & the kinds of drugs it affects

For each ingredient in Bilberry Myrtille 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.

Bilberry4 drug types · 275 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
In vitro, animal, and clinical research suggest that anthocyanidin extracts from bilberry can inhibit platelet aggregation.

Likelihood Possible Evidence D
Antidiabetes Drugs

Theoretically, bilberry leaf or fruit extract may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research suggests that bilberry leaf extract might have blood glucose-lowering activity. Also, one small clinical trial in patients with type 2 diabetes shows that taking bilberry fruit extract 470 mg as a single dose prior to an oral glucose tolerance test lowers plasma glucose levels when compared with placebo.

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

Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Animal research shows that exposure to small concentrations of bilberry extract in drinking water for around one month increased CYP2E1 activity by 31%. However, exposure over a 2-month period did not increase CYP2E1 activity. This effect has not been reported in humans.

Likelihood Possible Evidence D
Erlotinib (Tarceva)

Theoretically, bilberry fruit extract might reduce the efficacy of erlotinib.
In vitro research suggests that bilberry fruit extract and its constituents, delphinidin and delphinidin-3-O-glucoside, inhibit the activity of erlotinib. This interaction has not been reported in humans.

Likelihood Possible Evidence D
Bilberry full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Bilberry Myrtille, from the product label.

Herbal Select

See all Herbal Select products
Name
Herbal Select
Street Address
Unit 2 - 355 Michener Road
City
Guelph
State
Ont.
ZipCode
N1K 1E8
Phone Number
1-888-313-3369
Web Address
www.herbalselect.com
Pharmacist Counseling Corner

Bilberry Myrtille by Herbal Select: Common Questions

Does Bilberry Myrtille by Herbal Select interact with any medications?
Yes. Based on its ingredients, Bilberry Myrtille has a known interaction with 275 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Bilberry Myrtille 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.
Does bilberry actually help with vision?
Not according to the evidence we have. Bilberry is often marketed for night vision, but research shows it is possibly ineffective for that use. For age-related macular degeneration, we don't have enough reliable evidence to know either way.
What are the side effects?
Most people tolerate bilberry well. The common ones are dark-colored stools, gas, and mild stomach discomfort. Your tongue and stools may turn dark bluish-black or dark green — that's harmless and temporary. Gastrointestinal upset happens in a small number of people.
Is it safe to take while pregnant or breastfeeding?
Yes, bilberry is rated likely safe during pregnancy and lactation based on available data. If you have concerns, talk it over with your doctor or pharmacist.
What is bilberry and what is it supposed to do?
Bilberry is a small dark berry packed with anthocyanidins, plant compounds with antioxidant properties. It's been studied for effects on vision, blood sugar, and blood clotting, though solid evidence is limited.
How much bilberry is in each capsule?
The product facts provided don't specify the dose per capsule. Check the label on your bottle for the exact amount of bilberry extract per serving.

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

Not sure if Bilberry Myrtille 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.

Bilberry Myrtille label
Go deeper

The Full Monographs Behind Bilberry Myrtille’s Ingredients

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

Herb & supplement monograph

Bilberry

Interacts with 275 drugs

Bilberry is a blueberry-like fruit rich in antioxidant plant compounds called anthocyanins, and it has a long history of traditional use for eye health, circulation, and mild diarrhea. While...

Read the full Bilberry monograph →
Sources

Sources & How We Checked

Bilberry Myrtille'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 14 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.

Bilberry 14 references
  1. Cignarella A, Nastasi M, Cavalli E, Puglisi L. Novel lipid-lowering properties of Vaccinium myrtillus L. leaves, a traditional antidiabetic treatment, in several models of rat dyslipidaemia: a comparison with ciprofibrate. Thromb Res 1996;84:311-22. PubMed
  2. Morazzoni P, Magistretti MJ. Activity of Myrtocyan, an anthosyanoside complex from Vaccinium myrtillus (VMA), on platelet aggregation and adhesiveness. Fitoterapia 1990;61:13-21.
  3. Erlund, I., Koli, R., Alfthan, G., Marniemi, J., Puukka, P., Mustonen, P., Mattila, P., and Jula, A. Favorable effects of berry consumption on platelet function, blood pressure, and HDL cholesterol. Am J Clin Nutr 2008;87(2):323-331. PubMed
  4. Hawrelak, J. A. and Myers, S. P. Effects of two natural medicine formulations on irritable bowel syndrome symptoms: a pilot study. J Altern Complement Med 2010;16(10):1065-1071. PubMed
  5. Morazzoni P and Magistretti MJ. Effects of Vaccinium myrtillus anthocyanosides on prostacyclin-like activity in rat arterial issue. Fitoterapia 1986;57:11-14.
  6. Pulliero G, Montin S, Bettini V, and et al. Ex vivo study of the inhibitory effects of Vaccinium myrtillus anthocyanosides on human platelet aggregation. Fitoterapia 1989;60:69-75.
  7. Bottecchia D. Preliminary report on the inhibitory effect of vaccinium myrtillus anthocyanosides on platelet aggregation and clot retraction. Fitoterapia 1987;48:3-8.
  8. Fdez, M., Zaragoza, F., and Alvarez, P. In vitro platelet aggregation effects of anthocyanosides of vaccinium myrtilus L. Anales de la Real Academia de Farmacia 1983;49:79-90.
  9. Biedermann L, Mwinyi J, Scharl M, Frei P, Zeitz J, Kullak-Ublick GA, et al. Bilberry ingestion improves disease activity in mild to moderate ulcerative colitis-an open pilot study. 2013 May;7(4):271-9. PubMed
  10. Hoggard N, Cruickshank M, Moar KM, Bestwick C, Holst J, Russell W, et al. A single supplement of a standardized bilberry (Vaccinium myrtillus L.) extract (36% wet weight anthocyanins) modifies glycaemic response in individuals with type 2 diabetes control
  11. Aichinger G, Pahlke G, Nagel LJ, Berger W, Marko D. Bilberry extract, its major phenolic compounds, and soy isoflavone genistein antagonize the cytostatic drug erlotinib in human epithelial cells. Food Funct 2016;7(8):3628-36.
  12. Prokop J, Lněničková K, Cibicek N, et al. Effect of bilberry extract (Vaccinium myrtillus L.) on drug-metabolizing enzymes in rats. Food Chem Toxicol 2019;129:382-90. PubMed
  13. Chan SW, Chu TTW, Choi SW, Benzie IFF, Tomlinson B. Impact of short-term bilberry supplementation on glycemic control, cardiovascular disease risk factors, and antioxidant status in Chinese patients with type 2 diabetes. Phytother Res 2021. Online ahead o PubMed
  14. Bøhn SK, Myhrstad MCW, Thoresen M, et al. Bilberry/red grape juice decreases plasma biomarkers of inflammation and tissue damage in aged men with subjective memory impairment -a randomized clinical trial. BMC Nutr 2021;7(1):75. PubMed

See these in context on the Bilberry 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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