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Dietary supplement

Arnica Extract Ingredients & Drug Interactions

by MBi Nutraceuticals

Arnica Extract label
See full label image
Liquid Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 16, 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 MBi Nutraceuticals 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. 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 MBi Nutraceuticals

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

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HelloPharmacist Scorecard of Arnica Extract by MBi Nutraceuticals

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 extract in liquid form. Arnica is a plant traditionally used to address minor pain and swelling.

The liquid also holds deionized water, ethanol, glycerin, and benzyl alcohol as inactive ingredients that keep the extract stable and drinkable.

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: reduces inflammation and promotes tissue repair.
  • We looked for evidence on: Bruises, Exercise-induced muscle soreness, Osteoarthritis, Postoperative pain, Postoperative recovery, Postoperative swelling — 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 recovery, and more.

The evidence for arnica backs its use for osteoarthritis — that's rated possibly effective. For acne, breast cancer hot flashes, pain after surgery, and dry eye, the evidence isn't strong enough yet to say whether it works.

We don't have solid data on this product for those uses.

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 the critical safety issue: arnica taken by mouth in full strength — like an undiluted liquid or swallowed flowers — is unsafe and can cause serious toxicity. Common side effects from oral use include bleeding, stomach upset, nausea, vomiting, high blood pressure, muscle weakness, and shortness of breath.

Rare but serious effects include heart rhythm problems, coma, organ failure, and death. Homeopathic arnica is much gentler and generally well tolerated.

During pregnancy and breastfeeding, there isn't enough safety data — the evidence advises against it. Talk with your doctor or pharmacist about whether this product is right for you in these situations.

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 you take this product, check with your doctor or pharmacist if you're on any blood thinners or antiplatelet drugs — that's a moderate interaction risk. We have interaction data for one drug type across this product's ingredients.

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.

Arnica extract may help with osteoarthritis pain, but the evidence for other uses isn't established. The main concern is that it can thin your blood slightly and interact with blood thinners or antiplatelet drugs.

If you take any clot-prevention medication, check your exact drugs with your doctor or pharmacist before starting this product. Pregnant or nursing — talk it over with your healthcare provider first.

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 Jul 23, 2020.

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 MBi Nutraceuticals
Barcode (UPC) 358301253251
Net contents 2 fl. Oz.
Market status On market
Date entered into DSLD Jul 23, 2020
DSLD ID 231374
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Children 4 or More Years of Age, 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 MBi Nutraceuticals, 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:
25 Drop(s)
Servings per container
60
UPC/BARCODE
358301253251
IngredientAmount% DV
Arnica50 mg--

Other ingredients: deionized Water, Ethanol, Glycerin, Benzyl Alcohol

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.
Formula

Arnica Extract is made from imported and domestic herbs. It is processed by proprietary methods to preserve maximum potency. Activates immunity, reduces inflammation, promotes tissue repair, resolves fevers, and more.

Suggested/Recommended/Usage/Directions

Recommendation: Adults or children four or more years of age; take 25 drops 3 or 4 times per day or as directed by your health care professional.

Precautions

Shake well before using.

Warning: Keep out of the reach of children.

If pregnant or nursing, consult your physician before using this product.

If tamper resistant seals are broken do not use this product.

FDA Statement of Identity

Phyto-Fresh Liquid Herbal Therapy

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

See for yourself

Arnica Extract by MBi Nutraceuticals 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 MBi Nutraceuticals

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 container60 Amounts shown are per serving.

Arnica

Interacts with
122 drugs
50 mg 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 monograph & interactions

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

Interaction report

Arnica Extract by MBi Nutraceuticals 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 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

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.

Arnica1 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 full monograph & interactions
The maker

Brand information

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

MBi Nutraceuticals

See all MBi Nutraceuticals products
Name
MBi Nutraceuticals
City
Lindon
State
UT
ZipCode
84042
Phone Number
800-321-3740
Pharmacist Counseling Corner

Arnica Extract by MBi Nutraceuticals: Common Questions

Does Arnica Extract by MBi Nutraceuticals 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.
Can I take this if I'm on a blood thinner like warfarin or aspirin?
Not without checking first. Arnica may add to the thinning effect, raising your bleeding risk. Talk with your doctor or pharmacist about your specific medication before you start.
Is liquid arnica safe to swallow?
This is tricky. A liquid extract taken undiluted is unsafe — arnica swallowed in full strength can cause serious toxicity, including bleeding, stomach upset, and in rare cases, heart problems or organ failure. Homeopathic arnica is much gentler and better tolerated. If you're not sure what you have, check the label or ask your pharmacist.
What does arnica actually treat?
The strongest evidence backs arnica for osteoarthritis. For acne, hot flashes, pain after surgery, and dry eye, we don't have enough reliable evidence to say it works.
Can I use this while pregnant or breastfeeding?
No — there isn't enough safety data. The evidence advises against it during both pregnancy and breastfeeding. Talk with your doctor about what's safe for you and your baby.
What side effects does arnica cause?
Taken by mouth, it can cause stomach pain, nausea, vomiting, diarrhea, drowsiness, nervousness, and headache. Applied to skin, it may cause contact dermatitis or irritation. In rare serious cases from swallowed arnica, heart rhythm problems and organ damage have occurred.

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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