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Dietary supplement

Phyto-Gen Bilberry Young Shoot Ingredients & Drug Interactions

by Genestra Brands

Phyto-Gen Bilberry Young Shoot label
See full label image
Liquid 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 Phyto-Gen Bilberry Young Shoot 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

Phyto-Gen Bilberry Young Shoot is a dietary supplement by Genestra Brands 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 (Vaccinium myrtillus) young shoot 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 Phyto-Gen Bilberry Young Shoot by Genestra Brands

Ask about any prescription or over-the-counter medication and we check it for interactions with Phyto-Gen Bilberry Young Shoot by Genestra Brands — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Phyto-Gen Bilberry Young Shoot by Genestra Brands

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 Sep 3, 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.

Phyto-Gen Bilberry Young Shoot is a liquid supplement containing one active ingredient: bilberry (Vaccinium myrtillus) young shoot extract. The extract is suspended in purified water, ethanol, and glycerin, which serve as the liquid base and preservatives.

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 benefits is mixed. Night vision is rated possibly ineffective — the data doesn't support it working for that.

For age-related cognitive decline, age-related macular degeneration (AMD), atherosclerosis, high cholesterol (hyperlipidemia), and chronic venous insufficiency (the feeling of heaviness or aching in the legs), we hold insufficient reliable evidence to rate whether it works. In short, bilberry's use in supplement form hasn't been proven for these conditions in the data we have.

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 from food sources is generally well tolerated, but safety data on concentrated supplements is limited and long-term safety hasn't been well studied. The main caution is to avoid concentrated supplement doses until more safety information exists.

The most common side effects from oral use are dark-colored stools, flatulence, and mild stomach discomfort — your stools or tongue may turn dark blue or black, which is harmless but can be startling. Small trials report flatulence in around a third of participants and temporary stomach upset in about 13%, though these studies were small and had limitations.

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.

Check these medication types before taking this product: blood thinners and antiplatelet drugs (Moderate risk of bleeding), diabetes medications (Moderate risk of low blood sugar), drugs broken down by the CYP2E1 liver enzyme (Moderate risk of lower drug levels), and erlotinib (Moderate risk of reduced effectiveness).

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.

If you take blood thinners, diabetes medications, or erlotinib, check your exact drugs with the tool on this page before using this product. The evidence for what bilberry actually does — especially as a concentrated supplement — is weak or absent for most claims.

Talk it over with your doctor or pharmacist to see whether it makes sense for your situation.

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 Jul 23, 2020.

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 Phyto-Gen Bilberry Young Shoot, straight from the product label.

Brand Genestra Brands
Barcode (UPC) 883196117611
Net contents 0.5 fl. Oz.; 15 mL
Market status On market
Date entered into DSLD Jul 23, 2020
DSLD ID 231101
Product type Botanical
Supplement form Liquid
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 Phyto-Gen Bilberry Young Shoot by Genestra Brands, 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:
0.28 mL
Maximum serving Sizes:
0.28 mL
Servings per container
53
UPC/BARCODE
883196117611
IngredientAmount% DV
Bilberry (Vaccinium myrtillus) young shoot extract0.28 mL--

Other ingredients: purified Water, Ethanol, Glycerin

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

Recommended Dose: Take 10 drops once daily or as recommended by your health professional. Invert bottle to 45 degrees and shake lightly allowing drops to fall directly into mouth or in 1/4 oz of water.

Precautions

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.

Keep out of the reach of children.

This product was sealed for your protection. Do not use if box or contents are open or damaged.

Use only if safety seal is intact.

Storage

Store in a cool, dry place.

FDA Statement of Identity

Dietary Supplement

General Statements

Contents may not fill package in order to accommodate required labeling. Please rely on stated quantity. Scan to learn about our quality excellence

For warnings and additional information, see outer box.

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

See for yourself

Phyto-Gen Bilberry Young Shoot by Genestra Brands label

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

Phyto-Gen Bilberry Young Shoot 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 Phyto-Gen Bilberry Young Shoot by Genestra Brands

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

Serving size0.28 mL Dosage formLiquid Servings per container53 Amounts shown are per serving.

Bilberry (Vaccinium myrtillus) young shoot extract

Interacts with
275 drugs
0.28 mL per serving

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 (Vaccinium myrtillus) young shoot extract monograph & interactions

Other (inactive) ingredients: Purified Water, Ethanol, Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Phyto-Gen Bilberry Young Shoot by Genestra Brands Drug Interactions

Want to check YOUR meds against Phyto-Gen Bilberry Young Shoot?

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 (Vaccinium myrtillus) young shoot extract 275

Individual Drug Interactions

The ingredients in Phyto-Gen Bilberry Young Shoot interact with 275 drugs. Click any drug to see the details.

1 of the 1 ingredient in Phyto-Gen Bilberry Young Shoot interact with drugs. Each result below shows which ingredient is responsible. Bilberry (Vaccinium myrtillus) young shoot extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Phyto-Gen Bilberry Young Shoot 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.

Bilberry (Vaccinium myrtillus) young shoot extract4 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 (Vaccinium myrtillus) young shoot extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Phyto-Gen Bilberry Young Shoot, from the product label.

Genestra Brands

Name
Seroyal USA
City
Pittsburgh
State
PA
ZipCode
15275
Phone Number
1-888-737-6925
Web Address
seroyal.com
Pharmacist Counseling Corner

Phyto-Gen Bilberry Young Shoot by Genestra Brands: Common Questions

Does Phyto-Gen Bilberry Young Shoot by Genestra Brands interact with any medications?
Yes. Based on its ingredients, Phyto-Gen Bilberry Young Shoot 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?
Phyto-Gen Bilberry Young Shoot 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.
Will this turn my stools dark?
Yes, it's possible. Dark-colored or dark-bluish to black stools are a known side effect of bilberry, and in some cases the tongue or even teeth may discolor slightly. It's harmless, but can catch you off guard — in one study, about half the people taking bilberry extract saw dark green stools.
Is this safe if I'm pregnant or breastfeeding?
Bilberry is rated likely safe during pregnancy and breastfeeding, though long-term safety data is limited. For personalized advice about your own situation, talk with your doctor or pharmacist.
Does bilberry actually help with vision or memory?
Not according to the evidence we hold. Night vision is rated possibly ineffective, and for age-related memory decline and macular degeneration, the evidence is too weak or absent to say whether it works.
What are the main side effects?
Most people tolerate it well. The most common side effects are dark stools, gas, and mild stomach discomfort. Small trials report that around 13% to 33% of people had temporary gas or stomach upset, though those studies were small and limited.
Is this different from regular bilberry supplements?
This product uses young shoot extract instead of the fruit itself. The data we hold is for bilberry fruit and leaf extracts, so we can't say whether the young shoot version behaves identically — same interactions likely apply, but ask your pharmacist to confirm for your specific medications.

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

Not sure if Phyto-Gen Bilberry Young Shoot 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.

Phyto-Gen Bilberry Young Shoot label
Go deeper

The Full Monographs Behind Phyto-Gen Bilberry Young Shoot’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

Phyto-Gen Bilberry Young Shoot'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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