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Dietary supplement

Eyebright 430 mg Ingredients & Drug Interactions

by Bronson Laboratories

Eyebright 430 mg label
See full label image
Capsule Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Eyebright 430 mg 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

Eyebright 430 mg is a dietary supplement by Bronson Laboratories with 1 active ingredient. Its ingredients are commonly taken for eye irritation and redness, conjunctivitis (pink eye), eye strain.Based on those ingredients, 86 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Eyebright. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Eyebright 430 mg by Bronson Laboratories

Ask about any prescription or over-the-counter medication and we check it for interactions with Eyebright 430 mg by Bronson Laboratories — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Eyebright 430 mg by Bronson Laboratories

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 30, 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: eyebright, at 430 mg per capsule. Eyebright is an herb traditionally used to support eye and respiratory health, though modern evidence for most of those uses is insufficient.

The capsule itself is made from gelatin and filled with inactive ingredients — dicalcium phosphate, microcrystalline cellulose, magnesium stearate, and silica — which serve as binders and anti-caking agents.

Does it work?

Not established
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Eyebright's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: eye health.
  • We looked for evidence on: Asthenopia (eye strain), Conjunctivitis, Allergic rhinitis (hay fever), eye irritation, eye redness.
  • The closest evidence on file: Eyebright is rated "Insufficient Reliable Evidence To Rate" for Allergic rhinitis (hay fever) (Natural Medicines).
  • Also on file: Eyebright is rated "Insufficient Reliable Evidence To Rate" for Asthenopia (eye strain), Conjunctivitis.

The evidence we hold does not establish that eyebright is effective for hay fever, cancer, common cold, cough, pharyngitis, or rhinosinusitis — all six conditions listed carry a rating of insufficient reliable evidence to rate. This doesn't mean it doesn't work; it means the data we have isn't strong enough to say either way.

If you're considering it for a specific condition, ask your pharmacist what the current clinical picture looks like.

The evidence, ingredient by ingredient Eyebright

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.

Orally, eyebright is likely safe in small amounts as a tea. In the amounts and form in this capsule, side effects have been reported: confusion and headache are the most common, and some people report nausea, constipation, cough, shortness of breath, or nasal congestion.

Do not use homemade or non-sterile eyebright solutions directly in the eye — that's risky. Safety data in pregnancy advises against use; while breastfeeding, there isn't enough information to know whether it's safe, so talk with your doctor or pharmacist for personalized guidance.

Side effects, ingredient by ingredient Eyebright

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 — Eyebright.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: diabetes medications.
  • For scale: 86 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.

If you take any antidiabetes medication — insulin, metformin, sulfonylureas, or any other drug that lowers blood sugar — check your specific medications with the tool on this page before taking Eyebright. Altogether, these interactions span 86 individual medications.

Talk to your doctor or pharmacist to make sure combining them is safe for you.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Eyebright is an herbal supplement with limited evidence for the conditions it's traditionally used for. Its main interaction risk is with diabetes medications, which could theoretically increase the chance of low blood sugar.

If you take any antidiabetes drug, or if you're pregnant or breastfeeding, check with your doctor or pharmacist before starting this product.

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 Sep 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 Eyebright 430 mg, straight from the product label.

Brand Bronson Laboratories
Barcode (UPC) 716563426019
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Sep 25, 2013
DSLD ID 25295
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Eyebright 430 mg by Bronson Laboratories, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
UPC/BARCODE
716563426019
IngredientAmount% DV
Eyebright430 mg--

Other ingredients: Gelatin, Dicalcium Phosphate, Microcrystalline Cellulose, Magnesium Stearate, Silica

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 Statement of Identity

Dietary Supplement

General Statements

Herb traditionally used as an eye tonic

EYE HEALTH EST 1960

Made in USA

General

426 REF 0512

Suggested/Recommended/Usage/Directions

Directions: As a dietary supplement for adults, 1 capsule two times daily, or as directed by a health professional.

Precautions

WARNING: If you are pregnant, nursing, have a medical condition, taking any medications or planning any medical procedure, consult your doctor before use.

Keep out of reach of children.

Discontinue use and consult your doctor if any adverse reactions occur.

Storage

Store at room temperature. Protect from light.

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.

Brand IP Statement(s)

Discover the Bronson Difference(TM)

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

See for yourself

Eyebright 430 mg by Bronson Laboratories label

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

Eyebright 430 mg 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 Eyebright 430 mg by Bronson Laboratories

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

Serving size1 Capsule(s) Dosage formCapsule Amounts shown are per serving.

Eyebright

Interacts with
86 drugs
430 mg per serving

Eyebright is a traditional herb long used for minor eye irritation, redness, and allergy symptoms, but high-quality human studies are very limited. Th...

Eyebright monograph & interactions

Other (inactive) ingredients: Gelatin, Dicalcium Phosphate, Microcrystalline Cellulose, Magnesium Stearate, Silica. These complete the product’s ingredient list but are not active constituents.

Interaction report

Eyebright 430 mg by Bronson Laboratories Drug Interactions

Want to check YOUR meds against Eyebright 430 mg?

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
86Drugs
86 Moderate

Ingredients driving the most interactions

Eyebright 86

Individual Drug Interactions

The ingredients in Eyebright 430 mg interact with 86 drugs. Click any drug to see the details.

1 of the 1 ingredient in Eyebright 430 mg interact with drugs. Each result below shows which ingredient is responsible. Eyebright

Each ingredient & the kinds of drugs it affects

For each ingredient in Eyebright 430 mg 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.

Eyebright1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, eyebright might increase the risk of hypoglycemia when taken with antidiabetes drugs.
Animal research suggests that eyebright lowers blood glucose levels.

Likelihood Possible Evidence D
Eyebright full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Eyebright 430 mg, from the product label.

Bronson Laboratories

Name
Bronson Laboratories
City
Lindon
State
UT
ZipCode
84042
Pharmacist Counseling Corner

Eyebright 430 mg by Bronson Laboratories: Common Questions

Does Eyebright 430 mg by Bronson Laboratories interact with any medications?
Yes. Based on its ingredients, Eyebright 430 mg has a known interaction with 86 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Eyebright 430 mg 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 eyebright used for?
Eyebright is traditionally used to support eye and respiratory health — for hay fever, cough, colds, and similar conditions. However, the evidence we have is insufficient to say whether it actually works for any of these uses. Your pharmacist can discuss what the research currently shows.
What side effects might I experience?
Confusion and headache are the most commonly reported side effects when taken by mouth. Some people also report nausea, constipation, cough, shortness of breath, or nasal congestion. These aren't universal — many people don't experience any — but if they happen to you, stop taking it and talk to your pharmacist.
Can I use eyebright if I have diabetes and take blood sugar medication?
Animal research suggests eyebright lowers blood glucose, so taking it with diabetes drugs theoretically raises your risk of low blood sugar. Check your specific medications with the tool on this page and talk to your doctor or pharmacist before starting eyebright to decide whether it's right for you.
Is it safe to use while pregnant or breastfeeding?
Safety data advises against eyebright during pregnancy. While breastfeeding, there isn't enough safety information to know either way. Talk to your doctor or pharmacist for personalized guidance on whether you should use it during either time.
Can I put this directly in my eyes?
No. Homemade or non-sterile eyebright solutions applied directly to the eye are risky. This product is taken by mouth only.

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

Not sure if Eyebright 430 mg 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.

Eyebright 430 mg label
Go deeper

The Full Monographs Behind Eyebright 430 mg’s Ingredients

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

Herb & supplement monograph

Eyebright

Interacts with 86 drugs

Eyebright is a traditional herb long used for minor eye irritation, redness, and allergy symptoms, but high-quality human studies are very limited. There is not enough reliable evidence to c...

Read the full Eyebright monograph →
Sources

Sources & How We Checked

Eyebright 430 mg'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 4 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.

Eyebright 4 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Wichtl MW. Herbal Drugs and Phytopharmaceuticals. Ed. N.M. Bisset. Stuttgart: Medpharm GmbH Scientific Publishers, 1994.
  3. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  4. Porchezhian, E., Ansari, S. H., and Shreedharan, N. K. Antihyperglycemic activity of Euphrasia officinale leaves. Fitoterapia 2000;71(5):522-526. PubMed

See these in context on the Eyebright 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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