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Dietary supplement

Yarrow Flowers Ingredients & Drug Interactions

by Gaia Herbs

Liquid Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

Yarrow Flowers is a dietary supplement by Gaia Herbs 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 flowers extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Yarrow Flowers by Gaia Herbs

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

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 one active ingredient: yarrow flowers extract. Yarrow has been used traditionally for a range of purposes, including supporting wound healing, skin health, menstrual comfort, and immune function.

However, the evidence supporting these uses is not yet established in our data.

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 we hold does not establish yarrow's effectiveness for any of the conditions it's traditionally used for — including wound healing, eczema, menstrual discomfort, yeast infection, and tonsillitis. That doesn't mean it doesn't work; it means the reliable evidence isn't in yet.

If you're considering yarrow for a specific reason, it's worth discussing 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.

Yarrow taken by mouth or applied internally (vaginally) is generally well tolerated. However, when applied to skin, it can trigger contact dermatitis, hives, or allergic reactions in some people — especially those sensitive to plants in the daisy family.

Yarrow can also cause sun-sensitive reactions on the skin. One person who handled yarrow flowers reported rhinitis and asthma.

The safety data available are limited overall, and allergic reactions are possible. Yarrow is not safe in pregnancy — it may affect the uterus, so it should be avoided.

There isn't enough safety information to recommend it while breastfeeding either. If you're pregnant or breastfeeding, talk with your doctor or pharmacist before use.

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, talk with your doctor or pharmacist before using this product — yarrow may increase lithium levels and its side effects. No other medication interactions are documented in our data for this ingredient.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Yarrow has a long history in herbal medicine, but the evidence backing its uses isn't yet established. If you're interested in trying it, the main caution is a documented interaction with lithium — if you take that medication, check with your doctor or pharmacist first.

It's not recommended in pregnancy or while breastfeeding. For skin application, watch for allergic reactions.

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 Dec 21, 2012.

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 Flowers, straight from the product label.

Brand Gaia Herbs
Barcode (UPC) 751063312820
Net contents 4 fl. Oz.; 120 mL
Market status On market
Date entered into DSLD Dec 21, 2012
DSLD ID 16550
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Yarrow Flowers by Gaia Herbs, 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 mL
Maximum serving Sizes:
1.33 mL
Servings per container
120
UPC/BARCODE
751063312820
IngredientAmount% DV
Yarrow flowers 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.
General Statements

Liquid Herbal Extract

333 mg/ml herb equivalency

FDA Statement of Identity

DIETARY SUPPLEMENT

General

[02] 1093-0510

Suggested/Recommended/Usage/Directions

Take 30-40 drops of extract in a small amount of water 3-4 times daily between meals. Shake well before using.

Precautions

Not to be used during pregnancy or lactation. If you have a medical condition or take pharmaceutical drugs, please consult with your doctor before use.

Keep away from children.

Use only as directed on label. Safety sealed for your protection.

See for yourself

Yarrow Flowers by Gaia Herbs label

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

What’s inside

The Ingredients in Yarrow Flowers by Gaia Herbs

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

Serving size1 mL Dosage formLiquid Servings per container120 Amounts shown are per serving.

Yarrow flowers extract

Interacts with
1 drug
0 NP 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 flowers extract monograph & interactions
Interaction report

Yarrow Flowers by Gaia Herbs Drug Interactions

Want to check YOUR meds against Yarrow Flowers?

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Yarrow Flowers 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 flowers 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
The maker

Brand information

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

Pharmacist Counseling Corner

Yarrow Flowers by Gaia Herbs: Common Questions

Does Yarrow Flowers by Gaia Herbs interact with any medications?
Yes. Based on its ingredients, Yarrow Flowers 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 Flowers 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 if I'm pregnant?
No. Yarrow is considered likely unsafe in pregnancy because it may affect the uterus. Do not use it while pregnant. Talk with your doctor or pharmacist before considering any supplement during pregnancy.
Is it safe to use while breastfeeding?
There isn't enough safety data to recommend yarrow while breastfeeding. To be cautious, it's best avoided. Check with your doctor or pharmacist if you're considering it.
Can yarrow cause skin reactions?
Yes. When applied to the skin, yarrow can cause contact dermatitis, allergic reactions, hives, and sun-sensitive skin reactions in some people. It may also trigger airborne allergic reactions if you inhale particles from the flowers.
What conditions does yarrow treat?
Yarrow has been used traditionally for wound healing, skin conditions like eczema, menstrual discomfort, yeast infection, and tonsillitis. However, the evidence we hold doesn't yet establish that it works for any of these. Talk with your doctor about whether it might be right for your situation.
Is yarrow safe to take by mouth?
When taken by mouth or used internally, yarrow appears to be well tolerated overall. That said, allergic reactions can happen, and the long-term safety data are limited. If you have a history of plant allergies or sensitivities, use cautiously.

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

Not sure if Yarrow Flowers 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 Flowers label
Go deeper

The Full Monographs Behind Yarrow Flowers’s Ingredients

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

Sources

Sources & How We Checked

Yarrow Flowers'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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