Black Walnut Ingredients & Drug Interactions
by Hawaii Pharm
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 Hawaii Pharm 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 Hawaii Pharm
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: certified organic Black Walnut extract. Black walnut is the fruit of the black walnut tree and is commonly used in herbal preparations.
The liquid also contains vegetable palm glycerin, pharmaceutical grade alcohol, and purified water as inactive ingredients to deliver the extract.
Does it work?
Couldn't assess
The evidence for Black Walnut is limited. Our data shows insufficient reliable evidence to rate it for coronary heart disease or wound healing.
That doesn't mean it doesn't work — it means well-designed human studies haven't been done or published for these uses yet. If you're considering it for a specific health concern, talk it over with your doctor or pharmacist about what the current evidence shows.
How safe is it?
Well-documented data
Black Walnut fruit (the nut itself) is generally well tolerated when taken by mouth, but human safety data are limited and long-term use hasn't been well studied. The leaf, bark, and hull of the black walnut plant contain high quantities of tannins, which can cause gastrointestinal upset and, if used topically, skin irritation or temporary discoloration.
Tree nuts, including black walnuts, are a major food allergen in the United States — if you have a tree nut allergy, this product isn't for you. Daily use of the bark of English walnut (a related species) has been linked to tongue cancer and lip leukoplakia risk, so avoid long-term daily use of the bark if present.
The safety data advises against use during pregnancy and while breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for Black Walnut. That said, you should confirm your full medication list with your own doctor or pharmacist before starting this product — absence of documented interactions doesn't guarantee none exist.
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 appeal to someone looking for a traditional herbal remedy, but the evidence for its effectiveness is weak and long-term safety data are sparse. Because the leaf, bark, and hull can cause stomach upset and skin irritation, and it's a tree nut allergen, it's not right for everyone.
Talk with your own doctor or pharmacist before starting it, especially if you're pregnant, breastfeeding, have a tree nut allergy, or take any medications.
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 Oct 23, 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, straight from the product label.
| Brand | Hawaii Pharm |
|---|---|
| Barcode (UPC) | 650905481673 |
| Net contents | 4 Fluid Ounce(s); 120 mL |
| Market status | On market |
| Date entered into DSLD | Oct 23, 2020 |
| DSLD ID | 237329 |
| Product type | Botanical |
| Supplement form | Liquid |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years), Gluten Free |
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 Hawaii Pharm, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| certified organic Black Walnut extract | 970 mg | -- |
Other ingredients: Vegetable Palm Glycerin, pharmaceutical grade Alcohol, artesian Hawaiian purified Water
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.
General Statements
Hawaii Pharm Herbal Extract Highest quality since 2008
Made with Aloha!
Formulation
Contains no GMO, gluten, artificial colors, heavy metals, preservatives, pesticides, fertilizers.
Super concentrated liquid herbal extract. Dry herb/menstruum ratio: 1:3.
Manufactured in an FDA registered facility.
Non GMO Gluten free
Made in USA, Hawaii
Suggested/Recommended/Usage/Directions
Directions for use: Shake well before using. Take about 20-30 drops (0.7-1 ml, one full squeeze of the dropper bulb) to 2-4 oz of juice or water up to 4 times per day.
Precautions
Warning: Keep out of the reach of children.
May have contraindications. We recommend to seek expert medical advice before taking.
Do not use if you are allergic to any ingredients.
Consult a physician before using during pregnancy, if nursing or taking any medications.
Do not use if seal is broken or missing.
Storage
Store in a cool dry place.
Formula
(Juglans nigra)
FDA Statement of Identity
Herbal Dietary Supplement
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.
Seals/Symbols
FDA Registered Facility Made in United States of America USA
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Black Walnut by Hawaii Pharm 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 Hawaii Pharm
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size0.7 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.
Certified organic Black Walnut 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...
Certified organic Black Walnut extract monograph & interactionsOther (inactive) ingredients: Vegetable Palm Glycerin, Pharmaceutical grade Alcohol, Artesian Hawaiian purified Water. These complete the product’s ingredient list but are not active constituents.
Black Walnut by Hawaii Pharm 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.
Hawaii Pharm
See all Hawaii Pharm products- Name
- Hawaii Pharm LLC
- City
- Honolulu
- State
- HI
- ZipCode
- 96815
- Web Address
- www.hawaiipharm.com
Black Walnut by Hawaii Pharm: Common Questions
Does Black Walnut by Hawaii Pharm interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Is Black Walnut safe to use if I'm pregnant or breastfeeding?
I have a tree nut allergy. Can I take this?
What are the most common side effects of Black Walnut?
How long can I safely take Black Walnut?
Does Black Walnut really work for heart disease 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