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Dietary supplement

Arnica Extract Ingredients & Drug Interactions

by BulkSupplements.com

Arnica Extract label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Oct 7, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Arnica Extract 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 Extract is a dietary supplement by BulkSupplements.com 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 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 Extract by BulkSupplements.com

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

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HelloPharmacist Scorecard of Arnica Extract by BulkSupplements.com

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

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 1 active ingredient.

This product contains 1 active ingredient: arnica flower extract. Arnica is a plant used traditionally for pain and inflammation.

There are no inactive ingredients listed for this powder.

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: topical support for bruises and minor injuries.
  • We looked for evidence on: Bruises, Exercise-induced muscle soreness, Osteoarthritis, Postoperative pain, Postoperative swelling, sprains — and 3 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, Postoperative pain, Bruises, Postoperative swelling.

The evidence for arnica is mixed. It's possibly effective for osteoarthritis pain.

For acne, breast cancer-related hot flashes, post-surgery pain, and dry eye, there isn't enough reliable evidence yet to say whether it works. If you're considering this for osteoarthritis, it may be worth trying—but if you're looking at it for another reason, the science hasn't established whether it'll help.

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.

Here's where you need to pay close attention: arnica is unsafe to swallow in its full-strength form. The safety data shows that oral arnica can cause serious harm, including bleeding, vomiting, high blood pressure, abnormal heart rhythm, and in rare cases, organ failure or death.

Homeopathic and topical (skin-applied) forms appear generally well tolerated, but this powder is meant for oral use and carries real risk. Arnica is not safe in pregnancy or while breastfeeding—there isn't enough data to know it's okay.

The facts show it's rated likely unsafe for both. If you're pregnant or breastfeeding, skip this product and talk to your doctor or pharmacist about alternatives.

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.

Check before taking this if you're on blood thinners or antiplatelet drugs like warfarin, aspirin, or clopidogrel. The arnica in this product may theoretically add to their blood-thinning effect.

Your doctor or pharmacist can tell you whether it's safe to combine them.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with some supporting evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is potentially risky for oral use in its full strength. If you take any blood-thinning medications, you must check with your doctor or pharmacist first.

If you're pregnant or breastfeeding, avoid it entirely. If you're considering arnica for osteoarthritis, talk with your doctor or pharmacist about whether this form is right for you and whether it's safe alongside any medications or conditions you have.

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 Sep 25, 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 Arnica Extract, straight from the product label.

Brand BulkSupplements.com
Barcode (UPC) X0025KJ7KX
Net contents 100 Gram(s); 3.5 Ounce(s)
Market status On market
Date entered into DSLD Sep 25, 2023
DSLD ID 294491
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 Arnica Extract by BulkSupplements.com, 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:
1 Tsp(s)
Maximum serving Sizes:
2 Tsp(s)
UPC/BARCODE
X0025KJ7KX
IngredientAmount% DV
Arnica Flower Extract0 NP--

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: Add one to two tsp to 50 ml of warm water. Soak a clean linen or cotton cloth in solution and apply it to affected area.

FDA Disclaimer Statement

Warning: This product is not intended to diagnose, treat, cure or prevent any disease.

Precautions

Keep out of reach of children.

For external use only. Not intended for consumption. Do not use on open wounds.

Storage

Store in a dry, cool, dark place.

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

See for yourself

Arnica Extract by BulkSupplements.com label

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

Arnica Extract 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 Extract by BulkSupplements.com

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

Serving size1 Tsp(s) Dosage formPowder Amounts shown are per serving.

Arnica Flower Extract

Interacts with
122 drugs
0 NP per serving Form: Arnica montana Flower Extract

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 Extract monograph & interactions
Interaction report

Arnica Extract by BulkSupplements.com Drug Interactions

Want to check YOUR meds against Arnica Extract?

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 Extract 122

Individual Drug Interactions

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

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Arnica Extract 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 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 Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Arnica Extract, from the product label.

BulkSupplements.com

See all BulkSupplements.com products
Name
BulkSupplements.com
Street Address
7511 Eastgate Rd
City
Henderson
State
NV
ZipCode
89011
Web Address
bulksupplements.com
Pharmacist Counseling Corner

Arnica Extract by BulkSupplements.com: Common Questions

Does Arnica Extract by BulkSupplements.com interact with any medications?
Yes. Based on its ingredients, Arnica Extract 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 Extract 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.
Is arnica safe to take by mouth?
Not in full strength. The safety data shows that oral arnica at regular doses is unsafe and can cause serious toxicity—bleeding, vomiting, high blood pressure, heart problems, and in rare cases, organ failure. Homeopathic arnica seems safer, but this is a full-strength powder, so it carries real risk.
Can I take this if I'm pregnant or breastfeeding?
No. The safety data rates arnica as likely unsafe during pregnancy and while breastfeeding. There isn't enough information to know it's okay, so the advice is to avoid it. Talk with your doctor or pharmacist about what's safe for you.
What is arnica supposed to help with?
Arnica is possibly effective for osteoarthritis pain. For acne, hot flashes from breast cancer, post-surgery pain, and dry eye, there isn't enough reliable evidence yet to say whether it works.
What are the side effects if I take this orally?
Common side effects include bleeding, nausea, vomiting, stomach pain, diarrhea, high blood pressure, headache, drowsiness, and nervousness. In rare cases, serious problems like abnormal heart rhythm or organ failure have been reported.
Does arnica interact with blood thinners?
Yes. Arnica contains compounds that may add to the blood-thinning effect of medications like warfarin or aspirin. This is a moderate-level concern. You need to check with your doctor or pharmacist before using this product if you take any blood-thinning medication.

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

Not sure if Arnica Extract 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 Extract label
Go deeper

The Full Monographs Behind Arnica Extract’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 Extract'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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