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Dietary supplement

Horseradish Root Ingredients & Drug Interactions

by TerraVita

Horseradish Root label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Horseradish Root 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 Root is a dietary supplement by TerraVita 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 Root Glycerite Liquid 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 Horseradish Root by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Horseradish Root by TerraVita — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Horseradish Root by TerraVita

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 contains one active ingredient: Horseradish Root Glycerite Liquid Extract. Horseradish root has been used traditionally for respiratory and urinary complaints, though the reliable evidence for these uses is not yet established.

The liquid is prepared as a glycerite, meaning the active compounds are extracted into glycerin (which is also listed as an inactive ingredient). Glycerin is a common carrier for liquid herbal extracts.

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 facts we hold show insufficient reliable evidence to rate horseradish for respiratory tract infections, intestinal parasite infection, urinary tract infections, or gout. In short, we don't have established evidence that this product works for any of these purposes.

If you're considering it for a specific health goal, talk it over with your doctor or pharmacist about what the current science supports.

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.

Horseradish is generally well tolerated when you use food amounts. But this is a concentrated liquid supplement, and large amounts can irritate your digestive tract and mucous membranes, causing gastrointestinal upset, diarrhea, or bloody vomiting.

In rare cases, consuming large amounts has caused vasovagal syncope (a sudden drop in heart rate and blood pressure leading to fainting). Fresh horseradish applied to skin can irritate or trigger an allergic reaction.

If you're pregnant, avoid medicinal amounts because safety hasn't been established. While lactation data is mixed in our files, stick to food amounts only if you're breastfeeding, since medicinal use hasn't been well studied.

Start with the smallest dose and watch how your body responds.

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 replacement (levothyroxine, synthetic thyroid, or other thyroid medications), talk with your doctor or pharmacist before you start this product. Horseradish may interfere with how your thyroid medication works and could require a dose adjustment or monitoring of your thyroid levels.

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.

Horseradish Root may be worth trying if you're exploring traditional options for respiratory or urinary complaints, but evidence for it is still being built. The main concern is a moderate interaction with thyroid hormone medications — if you take thyroid replacement, check with your doctor or pharmacist before starting.

Avoid medicinal amounts if you're pregnant, and keep doses small while breastfeeding.

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 Dec 13, 2022.

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 Root, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435225971
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Dec 13, 2022
DSLD ID 279697
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Root by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435225971
IngredientAmount% DV
Horseradish Root Glycerite Liquid Extract0.13 mL--

Other ingredients: 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.
Brand IP Statement(s)

Copyright 2018 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5)

Formulation

Alcohol free No flavor

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Horseradish Root by TerraVita label

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

Horseradish Root 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 Root by TerraVita

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

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Horseradish Root Glycerite Liquid Extract

Interacts with
16 drugs
0.13 mL 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 Root Glycerite Liquid Extract monograph & interactions

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

Interaction report

Horseradish Root by TerraVita Drug Interactions

Want to check YOUR meds against Horseradish Root?

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 Root Glycerite Liquid Extract 16

Individual Drug Interactions

The ingredients in Horseradish Root interact with 16 drugs. Click any drug to see the details.

1 of the 1 ingredient in Horseradish Root interact with drugs. Each result below shows which ingredient is responsible. Horseradish Root Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Horseradish Root 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 Root Glycerite Liquid Extract1 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 Root Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Horseradish Root, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Horseradish Root by TerraVita: Common Questions

Does Horseradish Root by TerraVita interact with any medications?
Yes. Based on its ingredients, Horseradish Root 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 Root 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.
What does horseradish root actually do?
Horseradish has been used traditionally for respiratory infections, urinary tract infections, intestinal parasites, and gout. But we don't yet have reliable evidence that it's effective for any of these. If you're taking it for a specific reason, your doctor or pharmacist can help you weigh the traditional use against what current science shows.
Is this safe to use every day?
Food amounts are generally safe, but this is a concentrated supplement. Large or regular doses can cause gastrointestinal upset, diarrhea, and irritation of your mouth and throat. Start with a small amount and see how your body tolerates it.
Can I take this if I'm pregnant or breastfeeding?
Avoid medicinal amounts during pregnancy because safety hasn't been established. If you're breastfeeding, stick to food amounts only — medicinal use hasn't been well studied. Talk with your doctor or pharmacist about whether it's right for you.
What's the difference between this liquid extract and fresh horseradish?
This is a concentrated extract in glycerin, so a small amount delivers more active compounds than you'd get from a spoonful of fresh horseradish. That concentration is why side effects are more likely at higher doses. Fresh horseradish applied directly to skin can also irritate or trigger an allergic reaction.
Does horseradish interact with anything besides thyroid medication?
No other interactions are documented in our data for horseradish. That doesn't mean none exist — it just means we don't hold evidence of them. If you take any prescription medications, use the checker on this page with your exact medications, then confirm the results with your doctor or pharmacist.

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 Root label
Go deeper

The Full Monographs Behind Horseradish Root’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 Root'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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