Black Walnut Hull Tincture Ingredients & Drug Interactions
by Dr. Clark Research Association Dr. Clark Zentrum
What is this page for?
First and foremost: checking Black Walnut Hull Tincture 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 Hull Tincture is a dietary supplement by Dr. Clark Research Association Dr. Clark Zentrum 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 Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum
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
Low disclosure
This tincture contains one active ingredient: black walnut (Juglans nigra) hull. Black walnut has been studied for coronary heart disease and wound healing, though the evidence remains limited.
The product is delivered in a liquid form with distilled water, grain alcohol, green black walnuts, and vitamin C as inactive ingredients.
Does it work?
Couldn't assess
The evidence for black walnut hull isn't solid yet. Our data shows insufficient reliable evidence to rate it for either coronary heart disease or wound healing.
That doesn't mean it doesn't work — it means the studies so far haven't been strong enough to draw firm conclusions. If you're considering it for a specific health goal, talk it over with your doctor to see whether the current evidence makes sense for your situation.
How safe is it?
Well-documented data
Black walnut hull is generally well tolerated in the short term for most adults, but long-term safety hasn't been well studied and human data are limited. The hull contains high tannins, which can trigger gastrointestinal upset when taken by mouth.
Topically, the hull may cause temporary yellow or brown staining and skin irritation. Black walnut is a tree nut and can cause allergic reactions in people with tree nut sensitivity — a major food allergen in the United States.
Daily use of related species (English walnut bark) has been linked to increased tongue cancer and lip leukoplakia risk, so prolonged use warrants caution. During pregnancy, there isn't enough safety information; it's best avoided.
The same applies to breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for the ingredients we could check. Still, confirm with your own doctor or pharmacist that it's safe to add to your current medications before you begin.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. No medication interactions are currently documented, and safety information is well characterized.
Black Walnut Hull Tincture may appeal to someone exploring traditional herbal remedies, but the evidence for what it actually does is too thin to rely on it as a treatment. If you're pregnant, breastfeeding, or allergic to tree nuts, steer clear.
Talk with your doctor or pharmacist before starting, especially if you plan to use it long-term.
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 Jun 24, 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
General information
Key facts about Black Walnut Hull Tincture, straight from the product label.
| Brand | Dr. Clark Research Association Dr. Clark Zentrum |
|---|---|
| Barcode (UPC) | 7640116922112 |
| Net contents | 120 mL; 4 Ounce(s) |
| Market status | On market |
| Date entered into DSLD | Jun 24, 2020 |
| DSLD ID | 223432 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other |
| Intended target group(s) | Children 4 or More Years of Age, 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 Black Walnut Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Juglans nigra | 0 NP | -- |
Other ingredients: distilled Water, Grain Alcohol, Green Black Walnuts, Vitamin C
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.
Formulation
Extra strong
Made in the USA.
FDA Statement of Identity
Dietary Supplement/Food Supplement
Suggested/Recommended/Usage/Directions
Adults and children 12 or more years of age: 2 tsp in 1/4 cup of water or as directed. After first opening, use within 3 weeks.
Precautions
Store out of reach of young children.
Dietary supplements/food supplements should not be used as a substitute for a varied diet. Do not exceed the stated recommended daily dose.
Contains alcohol.
Storage
Store in the fridge or freezer.
Formula
Contains alcohol.
General Statements
Nominal weight: about 120 g % DV = % Daily Value
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Black Walnut Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum 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 Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Teaspoon(s) Dosage formLiquid Servings per container12 Amounts shown are per serving.
Juglans nigra
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...
Juglans nigra monograph & interactionsOther (inactive) ingredients: Distilled Water, Grain Alcohol, Green Black Walnuts, Vitamin C. These complete the product’s ingredient list but are not active constituents.
Black Walnut Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in Black Walnut Hull Tincture. 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 Hull Tincture, from the product label.
Dr. Clark Research Association Dr. Clark Zentrum
See all Dr. Clark Research Association Dr. Clark Zentrum products- Name
- Dr. Clark Zentrum Limited
- Street Address
- 152 Naxxar Road #7, SGN 9030
- City
- San Gwann
- State
- Malta
- Web Address
- www.drclark.com
Black Walnut Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum: Common Questions
Does Black Walnut Hull Tincture by Dr. Clark Research Association Dr. Clark Zentrum interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Will black walnut hull upset my stomach?
Is this safe to take long-term?
Can I take this if I'm pregnant or breastfeeding?
Does it work for heart health or wound healing?
Will this stain my skin?
I'm allergic to tree nuts. Should I avoid this?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Black Walnut Hull Tincture 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 Hull Tincture’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 Hull Tincture'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