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Dietary supplement

Shepherd's Purse Powder Ingredients & Drug Interactions

by TerraVita Premium Collection

Shepherd's Purse Powder label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Shepherd's Purse Powder 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 Powder is a dietary supplement by TerraVita Premium Collection 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, Powder. 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 Powder by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Shepherd's Purse Powder by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Shepherd's Purse Powder by TerraVita Premium Collection

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 powder. It's an herb traditionally used for certain women's health purposes, though the evidence for its effectiveness is limited.

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 and postpartum bleeding support.
  • We looked for evidence on: Menorrhagia, Postpartum complications, hemostasis, postpartum hemorrhage.
  • 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 data we hold doesn't establish how well shepherd's purse works for postpartum complications or heavy menstrual bleeding—the evidence is too thin to rate either use. If you're considering it for either of those reasons, talk with your doctor or pharmacist about whether the evidence fits your situation.

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.

Shepherd's purse seems to be reasonably well tolerated when you use small amounts for a short time. That said, human safety data are limited, so we don't have a complete picture.

Adverse effects traditionally linked to it include drowsiness, changes in blood pressure, abnormal thyroid function, irregular periods, and heart palpitations—though these aren't guaranteed to happen. Don't use this during pregnancy; the evidence suggests it may stimulate the uterus and could be harmful.

Don't breastfeed while taking it either; there isn't enough safety information. If you're pregnant, planning to become pregnant, or breastfeeding, steer clear of this product.

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 prescriptions against this product if you take sedatives, sleep aids, anxiety medications, or any other drugs that calm the nervous system (CNS depressants), or if you're on thyroid hormone replacement. Both types carry moderate interaction risk.

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 an herb with limited human safety data and interactions with sedatives and thyroid drugs. If you're on any medication—especially for sleep, anxiety, or thyroid disease—check with us first.

Pregnant people and breastfeeding parents should avoid it.

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 Jan 23, 2023.

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 Powder, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435115913
Net contents 1 Ounce(s)
Market status On market
Date entered into DSLD Jan 23, 2023
DSLD ID 282440
Product type Botanical
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
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 Shepherd's Purse Powder by TerraVita Premium Collection, 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
28
UPC/BARCODE
064435115913
IngredientAmount% DV
Shepherd's Purse, Powder1000 mg--

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 Statement of Identity

A Dietary Supplement

Brand IP Statement(s)

Copyright 2004 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Suggested/Recommended/Usage/Directions

Directions Stir 1/4 of a teaspoon into a glass of water and consume 3 times daily, with meals.

General Statements

TerraVita is an exclusive line of premium natural products that use the finest, purest and most potent ingredients in the world. TerraVita's hallmarks are the highest possible standards of purity, potency, stability and freshness. All products are prepared with the greatest quality control, from raw materials through the entire manufacturing process, right up to the moment your product is sealed for freshness and shipped to you.

Please recycle!

FDA Disclaimer Statement

Statements not evaluated by FDA. Product 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

Shepherd's Purse Powder by TerraVita Premium Collection label

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

Shepherd's Purse Powder 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 Powder by TerraVita Premium Collection

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

Serving size0.25 Teaspoon(s) Dosage formPowder Servings per container28 Amounts shown are per serving.

Shepherd's Purse, Powder

Interacts with
264 drugs
1000 mg 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, Powder monograph & interactions
Interaction report

Shepherd's Purse Powder by TerraVita Premium Collection Drug Interactions

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

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, Powder 264

Individual Drug Interactions

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

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

Each ingredient & the kinds of drugs it affects

For each ingredient in Shepherd's Purse Powder 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, Powder2 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, Powder full monograph & interactions
The maker

Brand information

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

TerraVita Premium Collection

See all TerraVita Premium Collection products
Name
TerraVita Fine Whole Herbs
City
Brampton
State
Ontario
Pharmacist Counseling Corner

Shepherd's Purse Powder by TerraVita Premium Collection: Common Questions

Does Shepherd's Purse Powder by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Shepherd's Purse Powder 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 Powder 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 the safety data advise against use during pregnancy. If you're pregnant or planning to become pregnant, don't take this product.
Is it safe to use while breastfeeding?
No. There isn't enough safety information to know either way, so the data advise against it while breastfeeding. Talk with your doctor or pharmacist if you have questions.
Can I take this if I'm on thyroid medication?
Not without checking first. Shepherd's purse may interfere with how thyroid drugs work in your body. Run your thyroid medication through the interaction checker on this page before you start.
Will this make me drowsy?
Drowsiness is listed as an adverse effect traditionally associated with shepherd's purse, though it isn't guaranteed. Some people may experience it, especially if they're also taking sedatives or sleep medications—which would make the risk worse.
Does this actually work for heavy periods or postpartum bleeding?
The evidence we have isn't strong enough to say either way. Both uses are rated as having insufficient reliable evidence. If you're considering it for one of those reasons, talk with your doctor about what the current research supports.

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

Not sure if Shepherd's Purse Powder 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 Powder label
Go deeper

The Full Monographs Behind Shepherd's Purse Powder’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 Powder'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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