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Dietary supplement

Arnica Flower Ingredients & Drug Interactions

by TerraVita

Arnica Flower 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 Arnica Flower 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

Arnica Flower is a dietary supplement by TerraVita with 1 active ingredient. Its ingredients are commonly taken for bruising, muscle soreness, joint pain (osteoarthritis).Based on those ingredients, 122 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Arnica Flower 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 Arnica Flower by TerraVita

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

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HelloPharmacist Scorecard of Arnica Flower 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 Jul 16, 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: arnica flower glycerite liquid extract. Arnica flower has a long history in herbal medicine for joint pain and wound healing.

The extract is made by steeping arnica flowers in glycerin to pull out the plant's active compounds. The only inactive ingredient listed is glycerin, the carrier liquid itself.

Does it work?

Moderate evidence
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
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: bruising, muscle soreness, and swelling.
  • We looked for evidence on: Bruises, Exercise-induced muscle soreness, Osteoarthritis, Postoperative swelling, sprains, minor injury — and 2 related terms.
  • The strongest evidence on file: Arnica is rated "Possibly Effective" for Osteoarthritis (Natural Medicines).
  • Also on file: Arnica is rated "Insufficient Reliable Evidence To Rate" for Exercise-induced muscle soreness, Bruises, Postoperative swelling.

The evidence here is mixed. For osteoarthritis — joint pain and stiffness — arnica is rated possibly effective, meaning there's some promising evidence but more research would help confirm it.

For acne, breast cancer-related hot flashes, pain after surgery, and dry eye, the evidence isn't established enough in our data to say whether it works or doesn't. If you're considering arnica for one of those conditions, talk with your doctor or pharmacist about what the current research suggests and whether it's worth trying alongside other treatments.

The evidence, ingredient by ingredient Arnica

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.

Arnica taken by mouth is unsafe at full strength and can cause serious toxicity — bleeding, stomach trouble, heart problems, and in rare cases, multi-organ failure. Homeopathic arnica (highly diluted forms) and topical arnica (creams or salves on skin) are generally well tolerated.

This product is a liquid extract, not homeopathic, so it's closer to a regular oral dose; side effects can include nausea, vomiting, stomach pain, diarrhea, headache, and nervousness. During pregnancy and breastfeeding, there isn't enough safety data — the evidence advises against it.

If you're pregnant, planning to become pregnant, or nursing, talk with your doctor or pharmacist before using this product.

Side effects, ingredient by ingredient Arnica

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 — Arnica.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 122 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 taking this product, double-check if you're on any blood thinners or antiplatelet drugs — that's warfarin, dabigatran, apixaban, rivaroxaban, aspirin, clopidogrel, ticagrelor, or similar medications. Arnica may add to their clotting-prevention effect, raising the risk of bleeding.

Use the search tool on this page to look up your exact medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

TerraVita's Arnica Flower extract may be worth trying if you have osteoarthritis and want to explore herbal options, but it's important to know the risks. If you take any blood thinner or antiplatelet medication, you'll need to check with your doctor or pharmacist first — the interaction is real, even if it hasn't been proven to cause bleeding in people.

This isn't a homeopathic dilution, so it carries more caution than gentler arnica preparations. Talk it over with your own healthcare provider 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 Nov 22, 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 Arnica Flower, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435128456
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Nov 22, 2022
DSLD ID 280166
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 Arnica Flower 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
064435128456
IngredientAmount% DV
Arnica Flower 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 2005 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

Arnica Flower by TerraVita label

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

Arnica Flower 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 Arnica Flower 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.

Arnica Flower Glycerite Liquid Extract

Interacts with
122 drugs
0.13 mL per serving

Arnica is a daisy-family plant used mainly in topical and homeopathic products for bruising, muscle soreness, and pain. The evidence is mixed and most...

Arnica Flower Glycerite Liquid Extract monograph & interactions

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

Interaction report

Arnica Flower by TerraVita Drug Interactions

Want to check YOUR meds against Arnica Flower?

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
122Drugs
122 Moderate

Ingredients driving the most interactions

Arnica Flower Glycerite Liquid Extract 122

Individual Drug Interactions

The ingredients in Arnica Flower interact with 122 drugs. Click any drug to see the details.

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Arnica Flower 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.

Arnica Flower Glycerite Liquid Extract1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, arnica might have additive effects with anticoagulant and antiplatelet drugs. Homeopathic arnica preparations are unlikely to have this interaction.
In vitro evidence shows that sesquiterpene lactones in arnica flowers can decrease platelet aggregation. However, this effect has not been reported in humans.

Likelihood Unlikely Evidence D
Arnica Flower Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Arnica Flower, 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

Arnica Flower by TerraVita: Common Questions

Does Arnica Flower by TerraVita interact with any medications?
Yes. Based on its ingredients, Arnica Flower has a known interaction with 122 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Arnica Flower 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 is arnica flower good for?
The evidence strongest supports arnica for osteoarthritis — the joint pain and stiffness that comes with wear and tear. For acne, hot flashes after breast cancer, surgery pain, and dry eye, the evidence isn't established yet in the data we hold. Your doctor or pharmacist can help you decide if it's worth trying for your situation.
Is this product safe to take by mouth?
Full-strength arnica taken by mouth is unsafe and can cause real toxicity — bleeding, stomach pain, nausea, vomiting, heart rhythm problems, and rarely, serious organ damage. This liquid extract is not heavily diluted, so those risks apply. Homeopathic arnica (very dilute forms) and arnica creams for the skin are much safer.
Can I take this while pregnant or breastfeeding?
No — there isn't enough safety data, and the evidence advises against it during pregnancy and breastfeeding. Talk with your doctor or pharmacist about safe alternatives if you're pregnant, planning pregnancy, or nursing.
What side effects might I notice?
Common ones with oral arnica are nausea, vomiting, stomach pain, diarrhea, headache, and nervousness. Less common are drowsiness and dizziness. Serious side effects are rare but can include heart rhythm problems and bleeding — stop and get emergency help if those occur.
Does this interact with my medications?
It interacts with blood thinners and antiplatelet drugs — medications that prevent clotting. Arnica may add to their effect, raising bleeding risk. Check your exact medications with the tool on this page and talk with your doctor or pharmacist before you start.
What's in this besides arnica?
Glycerin, which is the carrier liquid that the arnica is extracted into. That's the only inactive ingredient.

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

Not sure if Arnica Flower is safe with your meds?

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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.

Arnica Flower label
Go deeper

The Full Monographs Behind Arnica Flower’s Ingredients

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

Herb & supplement monograph

Arnica

Interacts with 122 drugs

Arnica is a daisy-family plant used mainly in topical and homeopathic products for bruising, muscle soreness, and pain. The evidence is mixed and mostly weak, and undiluted arnica taken by m...

Read the full Arnica monograph →
Sources

Sources & How We Checked

Arnica Flower'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 10 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.

Arnica 10 references
  1. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  3. Schroder H, Losche W, Strobach H, et al. Helenalin and 11 alpha, 13-dihydrohelenalin, two constituents from Arnica montana L., inhibit human platelet function via thiol-dependent pathways. Thromb Res 1990;57:839-45.
  4. Adkison JD, Bauer DW, Chang T. The effect of topical arnica on muscle pain. Ann Pharmacother 2010;44:1579-84. PubMed
  5. No authors listed. Final report on the safety assessment of Arnica montana extract and Arnica montana. Int.J.Toxicol. 2001;20:1-11. DOI
  6. Karow JH, Abt HP, Frohling M, and Ackermann H. Efficacy of Arnica montana D4 for healing of wounds after Hallux valgus surgery compared to diclofenac. J Altern Complement Med 2008;14:17-25.
  7. Venkatramani DV, Goel S, Ratra V, et al. Toxic optic neuropathy following ingestion of homeopathic medication Arnica-30. Cutan.Ocul.Toxicol. 2013;32:95-97. PubMed
  8. Moghadam BK, Gier R, and Thurlow T. Extensive oral mucosal ulcerations caused by misuse of a commercial mouthwash. Cutis 1999;64:131-134.
  9. Stevinson C, Devaraj VS, Fountain-Barber A, et al. Homeopathic arnica for prevention of pain and bruising: randomized placebo-controlled trial in hand surgery. J R Soc Med 2003;96:60-65. PubMed
  10. Canders CP, Stanford SR, Chiem AT. A dangerous cup of tea. Wilderness Environ Med. 2014 Mar;25(1):111-2. PubMed

See these in context on the Arnica 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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