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Dietary supplement

Shepherd's Purse Herb Ingredients & Drug Interactions

by Mountain Meadow Herbs

Shepherd's Purse Herb 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 Shepherd's Purse Herb 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

Shepherd's Purse Herb is a dietary supplement by Mountain Meadow Herbs with 1 active ingredient. Its ingredients are commonly taken for heavy or prolonged menstrual bleeding, minor bleeding (nosebleeds, wounds), mild diuretic.Based on those ingredients, 264 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Shepherd's Purse Herb 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 Shepherd's Purse Herb by Mountain Meadow Herbs

Ask about any prescription or over-the-counter medication and we check it for interactions with Shepherd's Purse Herb by Mountain Meadow Herbs — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Shepherd's Purse Herb by Mountain Meadow 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

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: Shepherd's Purse Herb Extract, delivered in a liquid form. The extract is suspended in glycerin and distilled water.

Does it work?

Insufficient 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
Insufficient

There isn't enough reliable clinical evidence to rate this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: menstrual bleeding and postpartum support.
  • We looked for evidence on: Menorrhagia, Postpartum complications.
  • The closest evidence on file: Shepherd's Purse is rated "Insufficient Reliable Evidence To Rate" for Postpartum complications (Natural Medicines).
  • Also on file: Shepherd's Purse is rated "Insufficient Reliable Evidence To Rate" for Menorrhagia.

The evidence we have on Shepherd's Purse for postpartum complications and heavy menstrual bleeding (menorrhagia) is insufficient — we can't say whether it works for these uses based on the data we hold. If you're considering it for either of these reasons, talk with your pharmacist or doctor about what the research actually supports.

The evidence, ingredient by ingredient Shepherd's Purse

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 used short-term in small amounts by adults, shepherd's purse is generally well tolerated. However, human safety data are limited, so we don't have a complete picture of how safe it is over time.

Shepherd's purse may stimulate the uterus, so do not use it during pregnancy. Avoid it while breastfeeding as well — there isn't enough safety information to know whether it passes into breast milk or could affect your baby.

Traditionally, adverse effects linked to shepherd's purse have included sedation, high or low blood pressure, abnormal thyroid function, irregular menstruation, and heart palpitations. When used in small amounts short-term, these aren't common, but they're worth knowing about.

Side effects, ingredient by ingredient Shepherd's Purse

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 — Shepherd's Purse.
  • The most serious interaction on file is rated Moderate.
  • For scale: 264 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.

Check your medications if you take sedative or sleep-aid drugs — shepherd's purse may make their drowsy effects stronger. Also check if you're on thyroid hormone replacement therapy, as this herb may interfere with how well it works.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with insufficient evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Shepherd's purse is a single-ingredient herbal extract with limited human safety data and moderate interactions with sedative drugs and thyroid medication. If you take either of those, check your exact medications before starting.

Talk with your pharmacist about whether short-term use makes sense for your situation.

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 Mar 25, 2025.

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 Shepherd's Purse Herb, straight from the product label.

Brand Mountain Meadow Herbs
Barcode (UPC) 813086017080
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Mar 25, 2025
DSLD ID 327802
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Women (not pregnant or lactating), Gluten Free, Dairy 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 Shepherd's Purse Herb by Mountain Meadow 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:
0.25 Teaspoon(s)
Maximum serving Sizes:
0.25 Teaspoon(s)
Servings per container
96
UPC/BARCODE
813086017080
IngredientAmount% DV
Shepherd's Purse Herb Extract1.25 mL--

Other ingredients: Glycerin, Water, Distilled

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.

Formula

Capsella bursa pastoris

Formulation

Alcohol free

Hand-made extract

GF (Gluten free)

Vegan

Anti-inflammatory properties May lessen bleeding Supports healthy water levels

FDA Statement of Identity

Herbal Dietary Supplement

General Statements

1 dropperful = approx. 1/8 tsp.

Midwife favorite

The MMH Three Leaf Promise: Our high-standards produce nothing less than pure, safe, and effective herbal products. You will always feel that we care - through our products, our service, and our understanding. We deliver on time.

Seals/Symbols

Made in Montana USA

Suggested/Recommended/Usage/Directions

Suggested use: 1/4 tsp. Take 1-3 times daily, or as needed. See catalog for dosage information. Shake well.

Precautions

Caution: If you are pregnant, nursing, have a medical condition, or are taking a prescription, consult your health care provider before using this product.

Keep out of reach of children.

Storage

Store in a cool, dry place out of sunlight.

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

See for yourself

Shepherd's Purse Herb by Mountain Meadow Herbs label

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

Shepherd's Purse Herb 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 Shepherd's Purse Herb by Mountain Meadow Herbs

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

Serving size0.25 Teaspoon(s) Dosage formLiquid Servings per container96 Amounts shown are per serving.

Shepherd's Purse Herb Extract

Interacts with
264 drugs
1.25 mL per serving

Shepherd's purse is a traditional herb most often used to help slow heavy menstrual bleeding and other minor bleeding, but solid human research is ver...

Shepherd's Purse Herb Extract monograph & interactions

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

Interaction report

Shepherd's Purse Herb by Mountain Meadow Herbs Drug Interactions

Want to check YOUR meds against Shepherd's Purse Herb?

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
264Drugs
264 Moderate

Ingredients driving the most interactions

Shepherd's Purse Herb Extract 264

Individual Drug Interactions

The ingredients in Shepherd's Purse Herb interact with 264 drugs. Click any drug to see the details.

1 of the 1 ingredient in Shepherd's Purse Herb interact with drugs. Each result below shows which ingredient is responsible. Shepherd's Purse Herb Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Shepherd's Purse Herb 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.

Shepherd's Purse Herb Extract2 drug types · 264 drugs

Cns Depressants

Theoretically, concomitant use with drugs with sedative properties may cause additive effects and side effects.

Likelihood Possible Evidence D
Thyroid Hormone

Theoretically, concomitant use may interfere with thyroid dysfunction therapy.

Likelihood Possible Evidence D
Shepherd's Purse Herb Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Shepherd's Purse Herb, from the product label.

Mountain Meadow Herbs

See all Mountain Meadow Herbs products
Name
Mountain Meadow Herbs, Inc.
Street Address
1019 Hard Rock Rd
City
Somers
State
MT
ZipCode
59932
Phone Number
888.528.8615
Web Address
www.mmherbs.com
Pharmacist Counseling Corner

Shepherd's Purse Herb by Mountain Meadow Herbs: Common Questions

Does Shepherd's Purse Herb by Mountain Meadow Herbs interact with any medications?
Yes. Based on its ingredients, Shepherd's Purse Herb has a known interaction with 264 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Shepherd's Purse Herb 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 while I'm pregnant?
No. Shepherd's purse may stimulate the uterus and is considered likely unsafe in pregnancy. Don't use it if you're pregnant or planning to become pregnant.
Is it safe to use while breastfeeding?
The safety data aren't available, so we can't say either way. To be cautious, avoid it while breastfeeding and talk with your doctor or pharmacist about whether it's right for you.
Does this actually work for heavy periods or postpartum bleeding?
The evidence we have is insufficient to say whether it works for either of those uses. The data just aren't strong enough yet to know if it's effective.
What are the common side effects?
When used short-term in small amounts, shepherd's purse is generally well tolerated and serious side effects are uncommon. Historically, it's been linked to sedation, high or low blood pressure, heart palpitations, and changes in thyroid function, but these aren't typical at low doses.
How long can I safely use this?
The data support short-term use only. Long-term safety hasn't been well studied in humans, so don't use it regularly or for extended periods without talking to your pharmacist first.

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

Not sure if Shepherd's Purse Herb 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.

Shepherd's Purse Herb label
Go deeper

The Full Monographs Behind Shepherd's Purse Herb’s Ingredients

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

Herb & supplement monograph

Shepherd's Purse

Interacts with 264 drugs

Shepherd's purse is a traditional herb most often used to help slow heavy menstrual bleeding and other minor bleeding, but solid human research is very limited. Because it may affect blood c...

Read the full Shepherd's Purse monograph →
Sources

Sources & How We Checked

Shepherd's Purse Herb'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 4 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.

Shepherd's Purse 4 references
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 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. Naafe M, Kariman N, Keshavarz Z, et al. Effect of hydroalcoholic extracts of Capsella bursa-pastoris on heavy menstrual bleeding: A randomized clinical trial. J Altern Complement Med. 2018;24(7):694-700. PubMed
  4. Ghalandari S, Kariman N, Sheikhan Z, et al. Effect of hydroalcoholic extract of Capsella bursa pastoris on early postpartum hemorrhage: A clinical trial study. J Altern Complement Med. 2017;23(10):794-799.

See these in context on the Shepherd's Purse 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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