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Dietary supplement

Yarrow Ingredients & Drug Interactions

by Nature's Sunshine

Yarrow label
See full label image
Capsule 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 Yarrow 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

Yarrow is a dietary supplement by Nature's Sunshine with 1 active ingredient. Its ingredients are commonly taken for wounds and minor bleeding, digestive upset and cramping, colds, flu, and fever.Based on those ingredients, 1 medication has a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Yarrow. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Yarrow by Nature's Sunshine

Ask about any prescription or over-the-counter medication and we check it for interactions with Yarrow by Nature's Sunshine — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Yarrow by Nature's Sunshine

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 Oct 1, 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 a single active ingredient: yarrow, a flowering plant traditionally used in herbal medicine. The capsules also contain kosher gelatin and water as inactive ingredients.

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

We hold no graded evidence for this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: traditional respiratory support.
  • We looked for evidence on: common cold, influenza, cough, bronchitis.
  • Our graded evidence for these ingredients doesn't cover that particular purpose.

The evidence for yarrow isn't established in our data. The uses listed — wound healing, eczema, heavy or painful periods, vaginal yeast infections, and tonsillitis — all carry a rating of insufficient reliable evidence.

That means human studies are either missing, small, or don't meet the standard we'd need to say it works. If you're considering yarrow for one of these purposes, discuss whether it's the right choice for your situation with your doctor or pharmacist.

The evidence, ingredient by ingredient Yarrow

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.

When taken by mouth or applied vaginally, yarrow is generally well tolerated. Topical use — on the skin — is where most side effects show up: allergic or irritant dermatitis (skin inflammation or rash), hives, and reactions triggered by sun exposure are the main concerns.

One person in a small trial developed worse acne after vaginal application. Handling the flowers themselves has rarely caused breathing problems and sinus symptoms.

Yarrow is not safe in pregnancy — the data advises against it because it may affect the uterus. There isn't enough safety information to recommend it while breastfeeding, so it's best avoided then too.

Side effects, ingredient by ingredient Yarrow

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 — Yarrow.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: lithium.
  • For scale: 1 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 lithium for mood disorders, do not start yarrow without talking to your doctor or pharmacist first — it may raise lithium levels in your blood. For any other medications you take, use the search tool on this page to double-check before adding this supplement.

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.

Yarrow might appeal to someone looking for a traditional remedy, but the evidence for what it actually does isn't clear. If you take lithium or any other medication, check with your doctor or pharmacist first — interactions are possible even if we've only documented one.

Pregnant or breastfeeding? Skip it and talk to your healthcare provider about safer alternatives.

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 Yarrow, straight from the product label.

Brand Nature's Sunshine
Barcode (UPC) 099904007505
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Nov 22, 2022
DSLD ID 278322
Product type Botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Kosher
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 Yarrow by Nature's Sunshine, 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 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
099904007505
IngredientAmount% DV
Yarrow300 mg--

Other ingredients: kosher Gelatin, Water

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 Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

General Statements

Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more. We source the world's purest ingredients, no matter where they are grown, to ensure the active nutrients are delivered just as nature intended.

New look! Same great product

Seals/Symbols

Ko Kosher Service Pareve

Formula

Ko Kosher Service Pareve

Precautions

Do not use if inner seal is missing or damaged.

Formulation

Traditional respiratory support

Guaranteed pure

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Recommended use: Take 1 capsule with a meal twice daily.

Brand IP Statement(s)

Natures Sunshine Herbal Experts since 1972

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

See for yourself

Yarrow by Nature's Sunshine label

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

Yarrow 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 Yarrow by Nature's Sunshine

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Yarrow

Interacts with
1 drug
300 mg per serving

Yarrow is a traditional herb long used for wounds, digestive complaints, and colds, but high-quality human studies are very limited, so its benefits a...

Yarrow monograph & interactions

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

Interaction report

Yarrow by Nature's Sunshine Drug Interactions

Want to check YOUR meds against Yarrow?

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
1Drugs
1 Moderate

Ingredients driving the most interactions

Yarrow 1

Individual Drug Interactions

The ingredients in Yarrow interact with 1 drug. Click any drug to see the details.

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Yarrow 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.

Yarrow1 drug type · 1 drug

Lithium

Theoretically, taking yarrow with lithium might increase the levels and adverse effects of lithium.
Animal research shows that yarrow has diuretic activity. Theoretically, due to these potential diuretic effects, yarrow might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
Yarrow full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Yarrow, from the product label.

Nature's Sunshine

See all Nature's Sunshine products
Name
Nature's Sunshine Products, Inc.
City
Spanish Fork
State
UT
ZipCode
84660
Phone Number
(800) 223-8225
Web Address
www.naturessunshine.com
Pharmacist Counseling Corner

Yarrow by Nature's Sunshine: Common Questions

Does Yarrow by Nature's Sunshine interact with any medications?
Yes. Based on its ingredients, Yarrow has a known interaction with 1 medication. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Yarrow 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 use yarrow while I'm pregnant?
No. Yarrow is considered likely unsafe in pregnancy because it may affect the uterus. Do not use it if you're pregnant or planning to become pregnant — talk with your doctor about what's safe for you.
Is it safe to use yarrow while breastfeeding?
There isn't enough safety information to know, so it's best avoided while breastfeeding. If you're nursing and interested in herbal support, ask your doctor or pharmacist for options with better safety data.
What side effects can yarrow cause?
When you swallow it or use it vaginally, yarrow is generally well tolerated with few side effects. Applied to the skin, it can cause rashes, hives, and other allergic reactions — especially if you're in the sun. Rarely, handling the plant itself has triggered sinus and breathing symptoms.
Does yarrow actually work for the conditions it's promoted for?
The evidence isn't established yet. Yarrow is listed for wound healing, eczema, heavy periods, yeast infections, and sore throat, but human studies are either missing or not strong enough to say it works. If you're interested in trying it, talk it over with your doctor.
How many active ingredients does this product have?
Just one — yarrow. The rest of what's in the capsule is gelatin and water, which are inactive ingredients that hold the product together.

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

Not sure if Yarrow is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.

Yarrow label
Go deeper

The Full Monographs Behind Yarrow’s Ingredients

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

Herb & supplement monograph

Yarrow

Interacts with 1 drug

Yarrow is a traditional herb long used for wounds, digestive complaints, and colds, but high-quality human studies are very limited, so its benefits are not well proven. It is generally used...

Read the full Yarrow monograph →
Sources

Sources & How We Checked

Yarrow'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 8 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.

Yarrow 8 references
  1. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  2. Uter, W., Nohle, M., Randerath, B., and Schwanitz, H. J. Occupational contact urticaria and late-phase bronchial asthma caused by compositae pollen in a florist. Am J Contact Dermat. 2001;12(3):182-184. DOI
  3. Schempp, C. M., Schopf, E., and Simon, J. C. [Plant-induced toxic and allergic dermatitis (phytodermatitis)]. Hautarzt 2002;53(2):93-97.
  4. Jovanovic, M., Poljacki, M., Duran, V., Vujanovic, L., Sente, R., and Stojanovic, S. Contact allergy to Compositae plants in patients with atopic dermatitis. Med Pregl. 2004;57(5-6):209-218. PubMed
  5. Becker LC, Bergfeld WF, Belsito DV, et al. Safety assessment of Achillea millefolium as used in cosmetics. Int J Toxicol. 2016;35(3 suppl):5S-15S.
  6. Zakeri S, Esmaeilzadeh S, Gorji N, Memariani Z, Moeini R, Bijani A. The effect of Achillea millefolium L. on vulvovaginal candidiasis compared with clotrimazole: A randomized controlled trial. Complement Ther Med. 2020;52:102483. PubMed
  7. de Souza P, Crestani S, da Silva Rde C, et al. Involvement of bradykinin and prostaglandins in the diuretic effects of Achillea millefolium L. (Asteraceae). J Ethnopharmacol. 2013 Aug 26;149(1):157-61. PubMed
  8. Miranzadeh S, Adib-Hajbaghery M, Soleymanpoor L, Ehsani M. Effect of adding the herb Achillea millefolium on mouthwash on chemotherapy induced oral mucositis in cancer patients: A double-blind randomized controlled trial. Eur J Oncol Nurs. 2015;19(3):207- PubMed

See these in context on the Yarrow 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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