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Dietary supplement

Yellow Dock Ingredients & Drug Interactions

by Herb Pharm

Yellow Dock label
See full label image
Liquid Category: Botanical
Most serious interaction: Major
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Yellow Dock 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: Major

Yellow Dock is a dietary supplement by Herb Pharm with 1 active ingredient. Its ingredients are commonly taken for constipation, digestive support, skin conditions.Based on those ingredients, 78 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Yellow Dock Root Extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Yellow Dock by Herb Pharm

Ask about any prescription or over-the-counter medication and we check it for interactions with Yellow Dock by Herb Pharm — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Yellow Dock by Herb 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.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 11, 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: Yellow Dock Root Extract. It's made by extracting the root and is prepared as a liquid in a base of cane alcohol, distilled water, and glycerin.

Yellow dock has traditionally been used to support digestive and liver function, though the evidence for these uses isn't established in the data we hold. The root contains compounds called anthraquinones, which give it a mild laxative effect.

Does it work?

Couldn't assess
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 assessable

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: gastrointestinal system restoration.
  • We looked for evidence on: constipation, digestive support, liver support.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

We don't hold effectiveness ratings for yellow dock in our data, so we can't tell you how well it works for any particular purpose.

The evidence, ingredient by ingredient Yellow Dock

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.

When properly prepared and used in small amounts short-term, yellow dock seems to be well tolerated. However, the safety data advises against use during pregnancy and while breastfeeding — the product has a laxative effect, and compounds may pass into breast milk.

Raw leaves or rhizomes are unsafe and can cause serious problems including low blood calcium (hypocalcemia), kidney stones, and vomiting. Large or excessive amounts can also cause skin irritation (dermatitis).

This product is a prepared extract, but stick to short-term use and don't exceed the dose on the label. Yellow dock also contains oxalates, which is another reason to use it cautiously and not long-term.

Side effects, ingredient by ingredient Yellow Dock

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Yellow Dock.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; heart-rhythm medications.
  • For scale: 78 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.

Before you take this product, double-check if you're on diuretic drugs or digoxin (Major severity) or warfarin (Moderate severity). Long-term or high-dose use combined with any of these could raise your risk of low potassium or increased bleeding.

Use the medication checker below with your prescription names.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Major medication interactions have been identified, and safety information is well characterized.

Yellow Dock Root Extract is best kept short-term and at the labeled dose. If you take a diuretic, digoxin, or warfarin, check your exact medications with the tool on this page before starting — the interactions are real and serious.

Skip it if you're pregnant or nursing. Talk with your pharmacist about whether this product fits your situation.

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 Feb 22, 2024.

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 Yellow Dock, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090800000515
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Feb 22, 2024
DSLD ID 307766
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten Free
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 Yellow Dock by Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
42
UPC/BARCODE
090800000515
IngredientAmount% DV
Yellow Dock Root Extract681 mg--

Other ingredients: Cane Alcohol, Water, Distilled, Glycerin

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.
Suggested/Recommended/Usage/Directions

Suggested use Shake well before using Adults: Add 1 squeeze of the dropper bulb to 2 oz. of water or juice, 2 to 4 times per day. Best taken between meals.

Precautions

Caution: Use with caution in persons with kidney stones.

Keep out of the reach of children

Storage

Store away from heat & light

Formula

Rumex crispus

Yellow Dock liquid extract

Formulation

System restoration Gastrointestinal

Gluten-free

Certified organic by Organic Certifiers

Seals/Symbols

USDA Organic

FDA Statement of Identity

Herbal Supplement

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.

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

See for yourself

Yellow Dock by Herb Pharm label

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

Yellow Dock 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 Yellow Dock by Herb 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 container42 Amounts shown are per serving.

Yellow Dock Root Extract

Interacts with
78 drugs
681 mg per serving

Yellow dock is a traditional herb used mostly as a mild laxative and a digestive and skin tonic. Good-quality human studies are lacking, so its benefi...

Yellow Dock Root Extract monograph & interactions

Other (inactive) ingredients: Cane Alcohol, Water, Distilled, Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Yellow Dock by Herb Pharm Drug Interactions

Want to check YOUR meds against Yellow Dock?

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
78Drugs
76 Major 2 Moderate

Ingredients driving the most interactions

Yellow Dock Root Extract 78

Individual Drug Interactions

The ingredients in Yellow Dock interact with 78 drugs. Click any drug to see the details.

1 of the 1 ingredient in Yellow Dock interact with drugs. Each result below shows which ingredient is responsible. Yellow Dock Root Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Yellow Dock 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.

Yellow Dock Root Extract3 drug types · 78 drugs

Digoxin (Lanoxin)

Theoretically, yellow dock might increase the risk of digoxin toxicity when used long-term or in large amount.
When yellow dock is used chronically or in large amounts, hypokalemia may occur. This might increase the toxic effects of digoxin.

Likelihood Probable Evidence D
Diuretic Drugs

Theoretically, yellow dock might increase the risk of hypokalemia when taken with diuretics.
When yellow dock is used chronically or in large amounts, hypokalemia may occur, and overuse of yellow dock might compound diuretic-induced potassium loss.

Likelihood Probable Evidence D
Warfarin (Coumadin)

Theoretically, the laxative effects of yellow dock might increase the effects of warfarin, including the risk of bleeding.
The anthraquinones in yellow dock have a mild stimulant laxative effect. Consuming excessive amounts can cause diarrhea. Diarrhea can increase the effects of warfarin, increase international normalized ratio (INR), and increase the risk of bleeding.

Likelihood Possible Evidence D
Yellow Dock Root Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Yellow Dock, from the product label.

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Yellow Dock by Herb Pharm: Common Questions

Does Yellow Dock by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Yellow Dock has a known interaction with 78 medications, including 76 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Yellow Dock 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.
Can I take this if I'm pregnant or breastfeeding?
No — the safety data advises against it. There isn't enough safety data overall, and the laxative compounds may pass into breast milk. Talk with your doctor or pharmacist about what's safe for you.
Is this safe to use long-term?
Not really. The product is best used short-term. Yellow dock contains oxalates, and long-term use can lower your potassium, especially if you're also on diuretics or digoxin. Stick to the dose on the label and don't use it for weeks on end without talking to your pharmacist.
What exactly does yellow dock do?
Yellow dock has traditionally been used to support digestive and liver function, but we don't have solid evidence in our data for how well it works. It does have a mild laxative effect from compounds in the root.
Why does the label warn about raw leaves?
Raw yellow dock leaves or rhizomes are unsafe — they can cause low blood calcium, kidney stones, and vomiting. This product is a prepared extract, but that's why it's important not to use raw plant material yourself and to stick to the dose on the bottle.
What are the common side effects?
When properly prepared and used in small amounts, yellow dock is usually well tolerated. The main risk is a laxative effect if you overuse it. Large amounts can also cause skin irritation.

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

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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.

Yellow Dock label
Go deeper

The Full Monographs Behind Yellow Dock’s Ingredients

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

Herb & supplement monograph

Yellow Dock

Interacts with 78 drugs

Yellow dock is a traditional herb used mostly as a mild laxative and a digestive and skin tonic. Good-quality human studies are lacking, so its benefits are largely unproven, and its natural...

Read the full Yellow Dock monograph →
Sources

Sources & How We Checked

Yellow Dock'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 8 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.

Yellow Dock 8 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  2. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to the Use of Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth Herbal Press, 1993.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  5. Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.
  6. Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  7. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  8. Latif A, Fichadiya H, Abid F, Capo G. Herbal Teas and Thrombocytopenia: A Curious Case of Yellow Dock and Burdock-Induced Thrombocytopenia. Eur J Case Rep Intern Med 2022;9(3):003247. PubMed

See these in context on the Yellow Dock 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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