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Dietary supplement

Yarrow Ingredients & Drug Interactions

by Herbalist & Alchemist

Yarrow label
See full label image
Liquid 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 Herbalist & Alchemist 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 dried Yarrow flowering tops 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 Herbalist & Alchemist

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

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HelloPharmacist Scorecard of Yarrow by Herbalist & Alchemist

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 one active ingredient: a liquid extract made from dried yarrow flowering tops. The extract is prepared with distilled water, ethyl alcohol, and vegetable glycerin as inactive ingredients (the carriers and preservatives that keep the liquid stable).

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Yarrow's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: Balances lower digestive tract.
  • We looked for evidence on: Irritable bowel syndrome (IBS), Digestive cramping, Abdominal discomfort.
  • The closest evidence on file: Yarrow is rated "Insufficient Reliable Evidence To Rate" for Irritable bowel syndrome (IBS) (Natural Medicines).

The evidence we hold for yarrow's effectiveness is insufficient to rate it for the uses commonly linked to it—tonsillitis, wound healing, atopic dermatitis (eczema), dysmenorrhea (period pain), and vaginal yeast infection. That means human trial data don't yet establish whether it works for these purposes.

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 intravaginally, yarrow appears to be well tolerated overall. However, when applied to the skin, it can cause allergic or contact dermatitis—rash or hives—due to compounds called sesquiterpene lactones.

It's also been reported to trigger phototoxic reactions (skin reactions triggered by sun exposure), airborne contact dermatitis, and in one case, rhinitis and asthma from handling the flowers. The safety data advises against use in pregnancy because yarrow may affect the uterus.

There isn't enough safety information to recommend it while breastfeeding; talk with your doctor or pharmacist about whether it's right for you in that situation.

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, check with your doctor or pharmacist before using this product—yarrow may raise lithium levels and side effects. Altogether, these interactions span 1 individual medication.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Yarrow is traditionally used for a range of conditions, but the evidence we hold doesn't yet confirm it works for any of them. The main concern is its interaction with lithium—a Moderate risk that requires your doctor's or pharmacist's input before you start.

If you're pregnant, the safety data advise against it; if you're breastfeeding, discuss it 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 25, 2018.

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 Herbalist & Alchemist
Barcode (UPC) 667056130893
Net contents 2 fl. Oz.; 60 mL
Market status On market
Date entered into DSLD Jul 25, 2018
DSLD ID 175872
Product type Botanical
Supplement form Liquid
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 Herbalist & Alchemist, 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:
1.5 mL
Maximum serving Sizes:
2.5 mL
Servings per container
24
UPC/BARCODE
667056130893
IngredientAmount% DV
dried Yarrow flowering tops extract2.5 mL--

Other ingredients: distilled Water, Ethyl Alcohol, 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.
Formula

Achillea millefolium

OK

General Statements

Balances lower digestive tract

Botanical preparation ratio 1:5

FDA Statement of Identity

Herbal Supplement

Suggested/Recommended/Usage/Directions

Suggested Use: 30-50 drops (1.5-2.5 mL) in juice or water. Take 3 times per day. Shake well before using.

Precautions

Contraindications: Do not use during pregnancy.

Keep out of children's reach

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.

General

NO. YRW-2 1744TH

Seals/Symbols

OK

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

See for yourself

Yarrow by Herbalist & Alchemist 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 Herbalist & Alchemist

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

Serving size1.5 mL Dosage formLiquid Servings per container24 Amounts shown are per serving.

Dried Yarrow flowering tops extract

Interacts with
1 drug
2.5 mL 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...

Dried Yarrow flowering tops extract monograph & interactions

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

Interaction report

Yarrow by Herbalist & Alchemist 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

dried Yarrow flowering tops 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. dried Yarrow flowering tops 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.

dried Yarrow flowering tops 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
dried Yarrow flowering tops extract full monograph & interactions
The maker

Brand information

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

Herbalist & Alchemist

See all Herbalist & Alchemist products
Name
Herbalist & Alchemist, Inc.
City
Washington
State
NJ
ZipCode
07882
Phone Number
800-611-8235
Web Address
www.herbalist-alchemist.com
Pharmacist Counseling Corner

Yarrow by Herbalist & Alchemist: Common Questions

Does Yarrow by Herbalist & Alchemist 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 this yarrow if I'm pregnant?
No. The safety data advise against yarrow in pregnancy because it may affect the uterus. Do not use it while pregnant.
Is it safe to use while breastfeeding?
There isn't enough safety information to recommend it while breastfeeding. Talk with your doctor or pharmacist about what's right for your situation.
What are the side effects?
When taken by mouth or used inside the vagina, yarrow is generally well tolerated. Applied to the skin, it can cause rash, hives, or allergic reactions in some people, and in rare cases has triggered sun-related skin reactions or breathing problems from handling the flowers.
Does this yarrow product actually work for tonsillitis or other conditions?
The evidence we hold is insufficient to confirm whether it works for tonsillitis, wound healing, eczema, period pain, or yeast infection. You're relying on traditional use rather than established clinical proof.
What's in this liquid besides yarrow?
The extract is suspended in distilled water, ethyl alcohol, and vegetable glycerin—the liquid carriers that preserve it.

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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