Chestnut Leaf Ingredients & Drug Interactions
by Pure Herbs
What is this page for?
First and foremost: checking Chestnut Leaf 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
Chestnut Leaf is a dietary supplement by Pure Herbs with 1 active ingredient. Its ingredients are commonly taken for cough and whooping cough, respiratory ailments, sore throat (topical/gargle).We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of Chestnut Leaf by Pure Herbs
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.
What’s inside
Full disclosure
This product contains one active ingredient: American Chestnut Leaf Extract. It's used traditionally for cough and sore throat (pharyngitis), though the evidence for either use isn't well established in the data we hold.
The extract is made from the leaves of the American chestnut tree.
Does it work?
Not established
The evidence for American Chestnut Leaf Extract isn't established in our data. For both cough and sore throat, we have insufficient reliable evidence to rate whether it works.
That doesn't mean it doesn't — it means the research supporting it isn't solid enough for us to say one way or the other.
How safe is it?
Some data gaps
Chestnut leaf contains high levels of tannins, compounds that can irritate your stomach or interfere with how your body absorbs nutrients, so take caution. Little modern safety data exists for this product overall.
Because there isn't enough safety information, it should be avoided during pregnancy and while breastfeeding — talk with your doctor or pharmacist if you're pregnant, planning to become pregnant, or nursing and want to know about your options.
Meds to double-check
No known interactions
No interactions are documented in our data for American Chestnut Leaf Extract. Still, run your medications through the checker on this page before starting, or ask your pharmacist to be sure.
The bottom line
Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. No medication interactions are currently documented, and some safety-information gaps remain.
Chestnut Leaf might interest someone looking for a traditional remedy for cough or sore throat, but the evidence for it isn't clear. The tannin content means stomach irritation is possible, so be aware of that.
Pregnancy and breastfeeding are cautions here. Check with your doctor or pharmacist before starting it, especially if you're pregnant or nursing.
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 Dec 13, 2022.
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 Chestnut Leaf, straight from the product label.
| Brand | Pure Herbs |
|---|---|
| Net contents | 1 Fluid Ounce(s); 30 mL |
| Market status | On market |
| Date entered into DSLD | Dec 13, 2022 |
| DSLD ID | 278762 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Women (not pregnant or lactating) |
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 Chestnut Leaf by Pure Herbs, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| American Chestnut Leaf Extract | 1897 mg | -- |
Other ingredients: None
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: For adults, mix 2 mL (abt. 1/2 tsp) of extract in 2 fl. oz (60 mL) water one time daily preferably with a meal.
Shake well before use
Formulation
Helps maintain a healthy respiratory system.
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Precautions
Warning: Not intended for use by pregnant or nursing women. If you have a medical condition or are taking medication, consult your doctor prior to use.
Discontinue use and consult with your doctor if any adverse reactions occur.
Keep out of reach of children
Brand IP Statement(s)
Pure Herbs, Ltd. Natural Herbal Extracts
FDA Statement of Identity
Dietary Supplement
General Statements
"No expense has been spared to provide the finest nature has to offer."
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Chestnut Leaf by Pure Herbs 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 Chestnut Leaf by Pure Herbs
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 mL Dosage formLiquid Servings per container15 Amounts shown are per serving.
American Chestnut Leaf Extract
No knowninteractions
American chestnut leaves and bark have a long history of folk use for coughs and respiratory complaints, mainly because of their tannin content, which...
American Chestnut Leaf Extract monograph & interactionsOther (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.
Chestnut Leaf by Pure Herbs Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Chestnut Leaf. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for Chestnut Leaf, from the product label.
Pure Herbs
See all Pure Herbs products- Name
- Pure Herbs, Ltd.
- City
- Sterling Heights
- State
- MI
- Phone Number
- (800) 860-4372
- Web Address
- www.pureherbs.com
Chestnut Leaf by Pure Herbs: Common Questions
Does Chestnut Leaf by Pure Herbs interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What is American Chestnut Leaf Extract used for?
Can I take this while pregnant?
Can I take this while breastfeeding?
What are the side effects?
Does this interact with my medications?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Chestnut Leaf 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 Chestnut Leaf’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Chestnut Leaf'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 2 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.
American Chestnut 2 references
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