Black Walnut Ingredients & Drug Interactions
What is this page for?
First and foremost: checking Black Walnut 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
Black Walnut is a dietary supplement by Herbalist & Alchemist with 1 active ingredient. Its ingredients are commonly taken for intestinal parasites and worms, digestive complaints, antimicrobial and antifungal support.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 Black Walnut by Herbalist & Alchemist
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: fresh black walnut seed hull extract. Black walnut is a plant preparation made from the hull of the black walnut seed — the outer covering of the nut itself.
The formula also includes distilled water, ethyl alcohol, and vegetable glycerin as inactive ingredients that serve as carriers and preservatives in the liquid form.
Does it work?
Couldn't assess
The evidence we hold for black walnut is limited. For both coronary heart disease (CHD) and wound healing, the data available doesn't yet establish whether it's effective — we rate both uses as having insufficient reliable evidence to rate.
If you're considering black walnut for heart or wound concerns, that's a conversation to have with your doctor about what the science can and can't tell us right now.
How safe is it?
Well-documented data
Black walnut is generally well tolerated in the short term for most adults, but human safety data are limited and long-term use hasn't been well studied. The hull, leaf, and bark contain high quantities of tannins, which can cause gastrointestinal upset when taken by mouth and skin irritation when applied to skin.
Some people may also experience temporary yellow or brown staining at the site of topical application. Because black walnuts are tree nuts, they can trigger allergic reactions in people with tree nut allergies — a common allergy in the general population.
The safety data advise against use during pregnancy and breastfeeding due to insufficient information.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we could check. Even so, if you take any regular medications, it's smart to run them through the search tool on this page or mention this product to your pharmacist before you begin.
The bottom line
Scorecard at a glanceFully disclosed formula with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Black walnut may be worth considering for short-term use in adults, though long-term safety isn't well established and the evidence for its intended effects is still limited. If you're pregnant, breastfeeding, allergic to tree nuts, or have ongoing gastrointestinal concerns, talk with your doctor or pharmacist before starting it.
Your healthcare provider can help you weigh whether this fits your individual health picture.
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 May 24, 2018.
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 Black Walnut, straight from the product label.
| Brand | Herbalist & Alchemist |
|---|---|
| Barcode (UPC) | 667056102777 |
| Net contents | 2 fl. Oz.; 60 mL |
| Market status | On market |
| Date entered into DSLD | May 24, 2018 |
| DSLD ID | 173770 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Kosher |
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 Black Walnut by Herbalist & Alchemist, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| fresh Black Walnut seed hull extract | 1.5 mL | -- |
Other ingredients: distilled Water, Ethyl Alcohol, Vegetable Glycerin
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.
Formula
Juglans nigra
OK
General Statements
Used to balance intestinal flora and organisms
Botanical preparation ratio 1:2
FDA Statement of Identity
Herbal Supplement
Suggested/Recommended/Usage/Directions
Suggested Use: 20-30 drops (1-1.5 mL) in juice water. Take 3 times per day. Shake well before using.
Precautions
Contraindications: Do not use during pregnancy or lactation.
Not for long term use.
Keep out of children's reach
FDA Disclaimer Statement
This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.
General
NO. BWH-2 1730MO
Seals/Symbols
OK
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Black Walnut by Herbalist & Alchemist 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 Black Walnut by Herbalist & Alchemist
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size1 mL Dosage formLiquid Servings per container40 Amounts shown are per serving.
Fresh Black Walnut seed hull extract
No knowninteractions
Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these us...
Fresh Black Walnut seed hull extract monograph & interactionsOther (inactive) ingredients: Distilled Water, Ethyl Alcohol, Vegetable Glycerin. These complete the product’s ingredient list but are not active constituents.
Black Walnut by Herbalist & Alchemist Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Black Walnut. 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 Black Walnut, from the product label.
Herbalist & Alchemist
See all Herbalist & Alchemist products- Name
- Herbalist & Alchemist, Inc.
- City
- Washington
- State
- NJ
- ZipCode
- 07882
- Phone Number
- 800-611-8235
- Web Address
- www.herbalist-alchemist.com
Black Walnut by Herbalist & Alchemist: Common Questions
Does Black Walnut by Herbalist & Alchemist interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Can I take this while pregnant or breastfeeding?
What are the most common side effects?
I have a tree nut allergy — is this safe for me?
How long can I take black walnut?
Does this product actually work for heart health or wound healing?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Black Walnut 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 Black Walnut’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
Black Walnut'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 3 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.
Black Walnut 3 references
- Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Food and Drug Administration. Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA); Public Law 108-282, Title II. Accessed on May 19, 2021. Available at: https://www.fda.gov/food/food-allergensgluten-free-guidance-documents-regulatory-infor
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