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Dietary supplement

Yarrow Ingredients & Drug Interactions

by Herb Pharm

Yarrow 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 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 Herb Pharm 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 flowering top (Achillea millefolium) 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 Yarrow by Herb Pharm

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

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HelloPharmacist Scorecard of Yarrow by Herb Pharm

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 11, 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: Yarrow flowering top extract from Achillea millefolium. It's prepared as a liquid extract in a base of certified organic cane alcohol, distilled water, and certified organic vegetable glycerin.

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 Yarrow product and its label doesn't state a use — see Yarrow'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 evidence for yarrow isn't established in the data we hold. It's traditionally used for tonsillitis, wound healing, eczema (atopic dermatitis), period pain (dysmenorrhea), and yeast infections (vaginal candidiasis), but we don't have reliable evidence that it works for any of these.

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 used inside the vagina, yarrow appears to be well tolerated by most people. Topically, it's the main concern — it can cause skin irritation, allergic reactions, or swelling (urticaria) in some people, especially those sensitive to plants in the daisy family.

A small number of people have reported reactions like dermatitis when exposed to the plant itself; one person developed nasal and asthma symptoms from handling the flowers. Yarrow is not recommended in pregnancy — traditional use suggests it may affect the uterus.

There isn't enough safety data to use 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.

Lithium (a mood stabilizer for bipolar disorder) is the one medication type you should double-check before using this product. Yarrow may increase lithium levels in your blood, so your dose might need adjustment.

Use the search tool on this page with your exact medication name.

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 is traditionally used for a range of conditions, but the evidence isn't clear. If you take lithium, check with us before using this product — it may raise your lithium levels.

Topical use can cause skin reactions in sensitive people. Talk to your pharmacist if you're pregnant, breastfeeding, or on any medications.

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 Apr 25, 2019.

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 Herb Pharm
Barcode (UPC) 090800000508
Net contents 1 fl. Oz.; 30 mL
Market status On market
Date entered into DSLD Apr 25, 2019
DSLD ID 200346
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Gluten Free
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 Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
42
UPC/BARCODE
090800000508
IngredientAmount% DV
Yarrow flowering top (Achillea millefolium) extract651 mg--

Other ingredients: certified organic Cane Alcohol, distilled Water, certified organic Vegetable 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.
Suggested/Recommended/Usage/Directions

Suggested use Shake well before using Add 1 full squeeze of the dropper bulb to 2 oz. of water or juice, 2 to 4 times per day. Best taken between meals.

Precautions

Caution: Seek expert medical advice before taking during pregnancy.

Keep out of the reach of children

Storage

Store away from heat & light

General

011

Formula

Achillea millefolium

Yarrow liquid extract

General Statements

Optimal well-being

Dry herb / menstruum ratio: 1:5

FDA Statement of Identity

Herbal Supplement

Formulation

Gluten-free

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

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

See for yourself

Yarrow by Herb Pharm 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 Herb Pharm

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

Serving size0.7 mL Dosage formLiquid Servings per container42 Amounts shown are per serving.

Yarrow flowering top (Achillea millefolium) extract

Interacts with
1 drug
651 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 flowering top (Achillea millefolium) extract monograph & interactions

Other (inactive) ingredients: Certified organic Cane Alcohol, Distilled Water, Certified organic Vegetable Glycerin. These complete the product’s ingredient list but are not active constituents.

Interaction report

Yarrow by Herb Pharm 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 flowering top (Achillea millefolium) extract 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 flowering top (Achillea millefolium) extract

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.

Yarrow flowering top (Achillea millefolium) extract1 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 flowering top (Achillea millefolium) extract full monograph & interactions
The maker

Brand information

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

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Yarrow by Herb Pharm: Common Questions

Does Yarrow by Herb Pharm 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.
Is yarrow safe to use while I'm pregnant?
No — the safety data advise against it. Yarrow has traditionally been avoided in pregnancy because it may affect the uterus. Talk with your doctor or midwife before considering any herbal supplement during pregnancy.
Can I use this while breastfeeding?
There isn't enough safety information, so it's best avoided while breastfeeding. If you're interested in using it, talk with your pharmacist or doctor first.
What side effects might I see if I take it by mouth?
When taken by mouth, yarrow seems to be well tolerated — most people don't report problems. However, allergic reactions can occur in some people, especially those sensitive to plants in the daisy family.
What about using it on my skin?
Topically, the main risk is skin irritation or allergic reactions. Yarrow can cause dermatitis, swelling, or a rash in some people. If you have sensitive skin or a history of plant allergies, test a small amount first.
Does this product actually work for the conditions it's marketed for?
The evidence isn't established in our data. Yarrow is traditionally used for things like tonsillitis, wound healing, eczema, period pain, and yeast infections, but we don't have reliable evidence that it works for any of these.

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.

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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