Bilberry Extract Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Bilberry Extract 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
Bilberry Extract is a dietary supplement by Superior Source with 2 active ingredients. Its ingredients are commonly taken for sugar substitute / sweetener, blood sugar support in diabetes, weight management.Based on those ingredients, 443 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bilberry fruit extract, Stevia leaf extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Bilberry Extract by Superior Source
Ask about any prescription or over-the-counter medication and we check it for interactions with Bilberry Extract by Superior Source — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of Bilberry Extract by Superior Source
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
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
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 2 of its 2 active ingredients.
- No proprietary blends here — you can verify the dose of every single component.
The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.
Why this rating?
- 2 of the 2 matched ingredients can interact with medications — Bilberry, Stevia.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications; lithium.
- For scale: 443 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.
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 2 of the 2 matched ingredients.
- Pregnancy & breastfeeding safety ratings cover 2 of 2.
- General safety write-ups exist for 2 of 2.
- Remember: this measures how much safety information exists. Thin data is not the same as being safe.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Dec 29, 2014.
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
General information
Key facts about Bilberry Extract, straight from the product label.
| Brand | Superior Source |
|---|---|
| Net contents | 60 MicroLingual(R) Instant Dissolve Tablet(s) |
| Market status | Off market |
| Date entered into DSLD | Dec 29, 2014 |
| DSLD ID | 40461 |
| Product type | Botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | No Claim |
| Intended target group(s) | Adult (18 - 50 Years) |
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 Extract by Superior Source, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Stevia leaf extract | 4 mg | -- |
| Bilberry fruit extract | 50 mg | -- |
Other ingredients: Lactose, natural Peppermint flavor, Acacia
Tap any ingredient to jump to its full detail below.
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: As a dietary supplement (herbal), dissolve two MicroLingual(R) tablets under the tongue daily. This product may be swallowed.
General Statements
ITEM# 90380 30767D
Seals/Symbols
MicroLingual(R)
FDA Statement of Identity
DIETARY SUPPLEMENT
General
ITEM # 90380 30767D P01 R02
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Bilberry Extract by Superior Source label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
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)The Ingredients in Bilberry Extract by Superior Source
These are the 2 active ingredients this product is made of. Select any to open its full monograph.
Serving size2 MicroLingual(R) Tablet(s) Dosage formTablet Or Pill Servings per container30 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.
Stevia leaf extract
Interacts with259 drugs
Stevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regu...
Stevia leaf extract monograph & interactionsBilberry fruit extract
Interacts with275 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 healt...
Bilberry fruit extract monograph & interactionsOther (inactive) ingredients: Lactose, Natural Peppermint flavor, Acacia. These complete the product’s ingredient list but are not active constituents.
Bilberry Extract by Superior Source Drug Interactions
Bilberry Extract contains 2 ingredients, and 2 of them have known drug interactions. Altogether they interact with 443 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Bilberry Extract?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Bilberry Extract interact with 443 drugs. Click any drug to see the details.
2 of the 2 ingredients in Bilberry Extract interact with drugs. Each result below shows which ingredient is responsible. Bilberry fruit extract Stevia leaf extract
AbciximabReoPro
How Abciximab interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Bilberry Fruit Extract + Abciximab interactionAbrocitinibCibinqo
How Abrocitinib interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Bilberry Fruit Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with Bilberry Extract — through 2 ingredients. Tap an ingredient for the detail:
Bilberry Fruit ExtractAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, bilberry leaf or fruit extract may increase the risk of hypoglycemia when taken with antidiabetes drugs.
Read the full Bilberry Fruit Extract + Acarbose interactionStevia Leaf ExtractAntidiabetes Drugs Minor
Interaction Summary
Theoretically, stevia might increase the risk for hypoglycemia when combined with antidiabetes drugs.
Read the full Stevia Leaf Extract + Acarbose interactionAcenocoumarolSintrom
How Acenocoumarol interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractAnticoagulant/antiplatelet Drugs Moderate
Interaction Summary
Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Bilberry Fruit Extract + Acenocoumarol interactionAcetaminophenChildren's Tylenol, Children's Tylenol Meltaways, Tylenol, Tylenol Ex Strength
How Acetaminophen interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen interactionAcetaminophen, AspirinGemnisyn
How Acetaminophen, Aspirin interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Bilberry Fruit Extract + Acetaminophen, Aspirin interactionAcetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine
How Acetaminophen, Aspirin, Caffeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractAnticoagulant/antiplatelet Drugs, Cytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
Read the full Bilberry Fruit Extract + Acetaminophen, Aspirin, Caffeine interactionAcetaminophen, Brompheniramine, PhenylpropanolamineDimetapp Cold and Flu
How Acetaminophen, Brompheniramine, Phenylpropanolamine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Brompheniramine, Phenylpropanolamine interactionAcetaminophen, ButalbitalAxocet, Bancap, Bucet, Butex Forte, Esgic CF, Orbivan CF +5 more
How Acetaminophen, Butalbital interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Butalbital interactionAcetaminophen, Butalbital, CaffeineEsgic, Esgic Plus, Fiogesic, Fioricet, Repan, Tecnal +1 more
How Acetaminophen, Butalbital, Caffeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Butalbital, Caffeine interactionAcetaminophen, Butalbital, Caffeine, CodeineEsgic with Codeine, Fioricet w/ Codeine
How Acetaminophen, Butalbital, Caffeine, Codeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Butalbital, Caffeine, Codeine interactionAcetaminophen, Butalbital, CodeineBancap w/ Codeine
How Acetaminophen, Butalbital, Codeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Butalbital, Codeine interactionAcetaminophen, Butalbital, Codeine PhosphatePhrenilin #3
How Acetaminophen, Butalbital, Codeine Phosphate interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Butalbital, Codeine Phosphate interactionAcetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, PhenylephrineHycomine Compound
How Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Chlorpheniramine, Hydrocodone, Phenylephrine interactionAcetaminophen, Caffeine, CodeineGesic C15, Gesic C30, Gesic C8, Lenoltec 1, Lenoltec 2, Lenoltec 3 +1 more
How Acetaminophen, Caffeine, Codeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Codeine interactionAcetaminophen, Caffeine, Codeine, SalicylamideCodalan No.1, Codalan No.2, Codalan No.3
How Acetaminophen, Caffeine, Codeine, Salicylamide interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Codeine, Salicylamide interactionAcetaminophen, Caffeine, DihydrocodeineDHC Plus, Panlor DC, Panlor SS
How Acetaminophen, Caffeine, Dihydrocodeine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Dihydrocodeine interactionAcetaminophen, Caffeine, IsomethepteneMigralam
How Acetaminophen, Caffeine, Isometheptene interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Isometheptene interactionAcetaminophen, Caffeine, PyrilamineMidol Max Strength Menstrual
How Acetaminophen, Caffeine, Pyrilamine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Caffeine, Pyrilamine interactionAcetaminophen, Chlorpheniramine Maleate, Dextromethorphan HbrVicks Formula 44M Cough, Cold & Flu Relief
How Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine Maleate, Dextromethorphan Hbr interactionAcetaminophen, Chlorpheniramine, Codeine, PhenylephrineColrex
How Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Codeine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, DextromethorphanCoricidin II Extra Strength Cold and Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan interactionAcetaminophen, Chlorpheniramine, Dextromethorphan HydrobromideCoricidin HBP Maximum Strength Flu
How Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan Hydrobromide interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PhenylpropanolamineMulti Symptom Cold Relief
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Dextromethorphan, PseudoephedrineChildren's Tylenol Cold Plus Cough, Tylenol Cold Ex Strength
How Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine interactionAcetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, SalicylamideRhinogesic GG
How Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Guaifenesin, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylephrineAlka-Seltzer PLUS, Histex SR, Protid
How Acetaminophen, Chlorpheniramine, Phenylephrine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylephrine interactionAcetaminophen, Chlorpheniramine, Phenylephrine, SalicylamideRhinogesic, Rhinogesic JR
How Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylephrine, Salicylamide interactionAcetaminophen, Chlorpheniramine, PhenylpropanolamineAlumadrine, Conex, Sinadrin Max Strength, Sinulin
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine interactionAcetaminophen, Chlorpheniramine, Phenylpropanolamine, OpiumHista-Derfule
How Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interacts with Bilberry Extract — through 1 ingredient. Tap an ingredient for the detail:
Bilberry Fruit ExtractCytochrome P450 2e1 (cyp2e1) Substrates Moderate
Interaction Summary
Theoretically, bilberry fruit extract might decrease levels of drugs metabolized by CYP2E1.
Read the full Bilberry Fruit Extract + Acetaminophen, Chlorpheniramine, Phenylpropanolamine, Opium interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Bilberry Extract 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.
Bilberry fruit extract
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.
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.
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.
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.
Stevia leaf extract
Lithium
Theoretically, stevia might decrease clearance and increase levels of lithium.
Animal research suggests that stevia extracts might have diuretic activity. Theoretically, increased reabsorption of lithium along with sodium might reduce excretion and increase levels of lithium.
Antidiabetes Drugs
Theoretically, stevia might increase the risk for hypoglycemia when combined with antidiabetes drugs.
Preliminary clinical research in patients with type 2 diabetes suggests that taking a single dose of stevia extract 1000 mg reduces postprandial blood glucose levels when taken with a meal. However, other clinical research in patients with type 1 or type 2 diabetes suggests that taking stevioside 250 mg three times daily does not significantly affect blood glucose levels or glycated hemoglobin (HbA1C) after three months of treatment.
Antihypertensive Drugs
Theoretically, combining stevia or stevia constituents with antihypertensive agents might increase the risk of hypotension.
Stevia extract and stevioside might lower blood pressure in patients with hypertension. However, other clinical research suggests that stevioside does not significantly lower blood pressure in patients with hypertension.
Brand information
Manufacturer and brand details for Bilberry Extract, from the product label.
Superior Source
See all Superior Source products- Name
- Superior Source
- City
- Los Angeles
- State
- CA
- Phone Number
- (800) 421-6175
- Web Address
- www.superiorsourcevitamins.com
Bilberry Extract by Superior Source: Common Questions
Does Bilberry Extract by Superior Source interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Bilberry Extract is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
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.
The Full Monographs Behind Bilberry Extract’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Stevia
Interacts with 259 drugsStevia is a plant-based, calorie-free sweetener that is widely used as a sugar alternative and is considered safe in normal food amounts by major regulators. Purified stevia extracts have a...
Read the full Stevia monograph → Herb & supplement monographBilberry
Interacts with 275 drugsBilberry 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 & How We Checked
Bilberry Extract'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.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
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 24 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.
Stevia 10 references
- Chan P, Xu DY, Liu JC, et al. The effect of stevioside on blood pressure and plasma catecholamines in spontaneously hypertensive rats. Life Sci 1998;63:1679-84. PubMed
- Melis MS. A crude extract of Stevia rebaudiana increases the renal plasma flow of normal and hypertensive rats. Braz J Med Biol Res 1996;29:669-75.
- Melis MS. Chronic administration of aqueous extract of Stevia rebaudiana in rats: renal effects. J Ethnopharmacol 1995;47:129-34. PubMed
- Melis MS, Sainati AR. Effect of calcium and verapamil on renal function of rats during treatment with stevioside. J Ethnopharmacol 1991;33:257-622. PubMed
- Hsieh MH, Chan P, Sue YM, et al. Efficacy and tolerability of oral stevioside in patients with mild essential hypertension: a two-year, randomized, placebo-controlled study. Clin Ther 2003;25:2797-808. PubMed
- Chan P, Tomlinson B, Chen YJ, et al. A double-blind placebo-controlled study of the effectiveness and tolerability of oral stevioside in human hypertension. Br J Clin Pharmacol 2000;50:215-20. PubMed
- Gregersen S, Jeppesen PB, Holst JJ, Hermansen K. Antihyperglycemic effects of stevioside in type 2 diabetic subjects. Metabolism 2004;53:73-6. PubMed
- Barriocanal LA, Palacios M, Benitez G, et al. Apparent lack of pharmacological effect of steviol glycosides used as sweeteners in humans. A pilot study of repeated exposures in some normotensive and hypotensive individuals and in Type 1 and Type 2 diabeti
- Ferri LA, Alves-Do-Prado W, Yamada SS, et al. Investigation of the antihypertensive effect of oral crude stevioside in patients with mild essential hypertension. Phytother Res 2006;20:732-6. PubMed
- Almiron-Roig E, Navas-Carretero S, Castelnuovo G, et al. Impact of acute consumption of beverages containing plant-based or alternative sweetener blends on postprandial appetite, food intake, metabolism, and gastro-intestinal symptoms: Results of the SWEE
Bilberry 14 references
- 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
- Morazzoni P, Magistretti MJ. Activity of Myrtocyan, an anthosyanoside complex from Vaccinium myrtillus (VMA), on platelet aggregation and adhesiveness. Fitoterapia 1990;61:13-21.
- 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
- 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
- Morazzoni P and Magistretti MJ. Effects of Vaccinium myrtillus anthocyanosides on prostacyclin-like activity in rat arterial issue. Fitoterapia 1986;57:11-14.
- 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.
- Bottecchia D. Preliminary report on the inhibitory effect of vaccinium myrtillus anthocyanosides on platelet aggregation and clot retraction. Fitoterapia 1987;48:3-8.
- 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.
- 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
- 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
- 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.
- 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
- 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
- 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
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