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Dietary supplement

Horseradish 4:1 Extract Powder Ingredients & Drug Interactions

by TerraVita Premium Collection

Horseradish 4:1 Extract Powder label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Horseradish 4:1 Extract Powder 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: Moderate

Horseradish 4:1 Extract Powder is a dietary supplement by TerraVita Premium Collection with 1 active ingredient. Its ingredients are commonly taken for sinus and respiratory congestion, urinary tract infections, digestive support.Based on those ingredients, 16 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Horseradish Extract, Powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Horseradish 4:1 Extract Powder by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Horseradish 4:1 Extract Powder by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Horseradish 4:1 Extract Powder by TerraVita Premium Collection

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 Aug 6, 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 is a single-ingredient supplement: one 4:1 horseradish extract in powder form. The "4:1" means it's a concentrated extract — four parts of fresh horseradish reduced to one part powder.

There are no inactive fillers or other ingredients listed.

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

This is a single-ingredient Horseradish product and its label doesn't state a use — see Horseradish's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence we hold for horseradish doesn't yet support its use for any condition. The data shows insufficient reliable evidence for respiratory tract infections, intestinal parasite infection, urinary tract infections, and gout.

If you're considering horseradish for any of these reasons, the science hasn't caught up yet — talk with your doctor about proven options instead.

The evidence, ingredient by ingredient Horseradish

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.

In food amounts, horseradish is generally well tolerated. But this powder is a concentrated extract, and large amounts can irritate your digestive tract and mucous membranes, causing gastrointestinal upset, diarrhea, or even bloody vomiting.

Rare cases of fainting (vasovagal syncope) have been reported with large horseradish intake. Don't use medicinal amounts during pregnancy — safety data isn't there.

During breastfeeding, limit yourself to food amounts; medicinal use hasn't been well studied.

Side effects, ingredient by ingredient Horseradish

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Horseradish.
  • The most serious interaction on file is rated Moderate.
  • For scale: 16 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.

If you take thyroid hormone medications (levothyroxine, liothyronine, desiccated thyroid, or others), double-check with your doctor or pharmacist before adding this product — horseradish may reduce how well your thyroid medication works.

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. Moderate medication interactions have been identified, and safety information is well characterized.

This is a one-ingredient product that's generally well tolerated at food amounts but can cause digestive irritation in concentrated doses. The main concern is potential interference with thyroid hormone medications.

There's no established evidence for any health condition yet. If you take thyroid medication or have questions about how much to use safely, check with your doctor or pharmacist before starting.

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 Mar 22, 2023.

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 Horseradish 4:1 Extract Powder, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064434274185
Net contents 1 Ounce(s)
Market status On market
Date entered into DSLD Mar 22, 2023
DSLD ID 289095
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
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 Horseradish 4:1 Extract Powder by TerraVita Premium Collection, 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:
0.25 Teaspoon(s)
Maximum serving Sizes:
0.25 Teaspoon(s)
Servings per container
28
UPC/BARCODE
064434274185
IngredientAmount% DV
Horseradish Extract, Powder1000 mg--

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.
FDA Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2020 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product 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

Horseradish 4:1 Extract Powder by TerraVita Premium Collection label

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

Horseradish 4:1 Extract Powder 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 Horseradish 4:1 Extract Powder by TerraVita Premium Collection

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size0.25 Teaspoon(s) Dosage formPowder Servings per container28 Amounts shown are per serving.

Horseradish Extract, Powder

Interacts with
16 drugs
1000 mg per serving

Horseradish is a pungent root used as a food and folk remedy, most often for sinus congestion and urinary tract complaints. Human evidence is limited,...

Horseradish Extract, Powder monograph & interactions
Interaction report

Horseradish 4:1 Extract Powder by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Horseradish 4:1 Extract Powder?

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
16Drugs
16 Moderate

Ingredients driving the most interactions

Horseradish Extract, Powder 16

Individual Drug Interactions

The ingredients in Horseradish 4:1 Extract Powder interact with 16 drugs. Click any drug to see the details.

1 of the 1 ingredient in Horseradish 4:1 Extract Powder interact with drugs. Each result below shows which ingredient is responsible. Horseradish Extract, Powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Horseradish 4:1 Extract Powder 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.

Horseradish Extract, Powder1 drug type · 16 drugs

Thyroid Hormone

Theoretically, horseradish might interfere with the effects of thyroid hormone.
Horseradish and other members of the cabbage and mustard family are associated with depressed thyroid function.

Likelihood Possible Evidence D
Horseradish Extract, Powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Horseradish 4:1 Extract Powder, from the product label.

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Horseradish 4:1 Extract Powder by TerraVita Premium Collection: Common Questions

Does Horseradish 4:1 Extract Powder by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Horseradish 4:1 Extract Powder has a known interaction with 16 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Horseradish 4:1 Extract Powder 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?
The safety data advises against medicinal amounts during pregnancy. Stick to horseradish in food if you're pregnant, and talk with your doctor or pharmacist about whether this supplement is right for you.
Is this safe while breastfeeding?
Food amounts are likely safe during breastfeeding, but medicinal use — like this concentrated powder — hasn't been well studied. Limit yourself to food amounts, or ask your doctor or pharmacist for personalized guidance.
What does horseradish actually do?
The evidence we hold doesn't yet establish that horseradish works for any specific condition. It's been studied for respiratory infections, UTIs, parasites, and gout, but the data is insufficient to recommend it for those purposes.
Can large amounts cause serious side effects?
Yes. In large amounts, horseradish can cause gastrointestinal upset, diarrhea, and bloody vomiting. Very rarely, it's been linked to fainting. Stick to smaller amounts and stay hydrated.
Does this powder have any fillers?
No — this is a pure horseradish extract with no other inactive ingredients listed.

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.

Horseradish 4:1 Extract Powder label
Go deeper

The Full Monographs Behind Horseradish 4:1 Extract Powder’s Ingredients

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

Herb & supplement monograph

Horseradish

Interacts with 16 drugs

Horseradish is a pungent root used as a food and folk remedy, most often for sinus congestion and urinary tract complaints. Human evidence is limited, and while culinary amounts are generall...

Read the full Horseradish monograph →
Sources

Sources & How We Checked

Horseradish 4:1 Extract Powder'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 6 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.

Horseradish 6 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.
  3. The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.
  4. Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=182
  5. Panter, K. E. and James, L. F. Natural plant toxicants in milk: a review. J Anim Sci 1990;68(3):892-904. PubMed
  6. Lehmann CU, Puckett AL, Betz BO. 56-year-old man - increased heart rate - weakness - intense sweating - horseradish consumption - Dx?. J Fam Pract 2022;71(7):317-321. PubMed

See these in context on the Horseradish 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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