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Dietary supplement

Bugleweed 450 mg Ingredients & Drug Interactions

by TerraVita Premium Collection

Bugleweed 450 mg label
See full label image
Capsule 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 Bugleweed 450 mg 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

Bugleweed 450 mg is a dietary supplement by TerraVita Premium Collection with 1 active ingredient. Its ingredients are commonly taken for mild overactive thyroid symptoms, heart palpitations and rapid heartbeat, anxiety and restlessness.Based on those ingredients, 16 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Bugleweed. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Bugleweed 450 mg by TerraVita Premium Collection

Ask about any prescription or over-the-counter medication and we check it for interactions with Bugleweed 450 mg by TerraVita Premium Collection — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Bugleweed 450 mg 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: bugleweed, 450 mg per capsule. Bugleweed is a plant traditionally used to support thyroid and hormone function, though the evidence for its effectiveness remains limited.

The capsule also contains two inactive ingredients—gelatin and water—which serve as the capsule material.

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 Bugleweed product and its label doesn't state a use — see Bugleweed'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 for bugleweed doesn't support its use at this time. For hyperthyroidism, insomnia, and premenstrual syndrome (PMS), the available data shows insufficient reliable evidence to rate how well it works.

That doesn't mean it's ineffective—it means we don't yet have strong clinical proof either way.

The evidence, ingredient by ingredient Bugleweed

How safe is it?

Some data gaps
Safety Information · database check
Some gaps

Safety data exists for these ingredients, but with some important gaps.

Why this rating?
  • We hold adverse-effect (side-effect) data for 0 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.

Bugleweed should be used only under the guidance of a healthcare provider because it may affect thyroid function. The ingredient is not recommended during pregnancy—safety data is not sufficient and possible effects on hormones make it likely unsafe.

During breastfeeding, bugleweed may reduce prolactin levels and milk production, so it should not be used while nursing. No adverse effects (like nausea or headache) were reported in our data, but that absence doesn't guarantee none will occur in you.

Side effects, ingredient by ingredient Bugleweed

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 — Bugleweed.
  • The most serious interaction on file is rated Moderate.
  • For scale: 16 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 thyroid hormones (levothyroxine, liothyronine, desiccated thyroid, or other forms), you should check with your pharmacist before adding bugleweed. The supplement may lower the effect of your thyroid medication, a Moderate-severity interaction.

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 glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and some safety-information gaps remain.

Bugleweed may be considered by someone with overactive thyroid (hyperthyroidism) who is under medical supervision, but the evidence for it is thin. If you take any thyroid medication, talk to your pharmacist before starting—it could reduce how well your prescription works.

Avoid this product if you're pregnant or breastfeeding.

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 Feb 21, 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 Bugleweed 450 mg, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435109769
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 285926
Product type Botanical
Supplement form Capsule
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 Bugleweed 450 mg 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:
1 Capsule(s)
Maximum serving Sizes:
1 Capsule(s)
Servings per container
100
UPC/BARCODE
064435109769
IngredientAmount% DV
Bugleweed450 mg--

Other ingredients: Gelatin, Water

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 Take 1 capsule, 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

Bugleweed 450 mg by TerraVita Premium Collection label

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

Bugleweed 450 mg 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 Bugleweed 450 mg by TerraVita Premium Collection

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

Serving size1 Capsule(s) Dosage formCapsule Servings per container100 Amounts shown are per serving.

Bugleweed

Interacts with
16 drugs
450 mg per serving

Bugleweed is a traditional herb most often used for mild overactive thyroid symptoms and the rapid heartbeat that can come with it, but high-quality h...

Bugleweed monograph & interactions

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

Interaction report

Bugleweed 450 mg by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Bugleweed 450 mg?

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
16Drugs
16 Moderate

Ingredients driving the most interactions

Bugleweed 16

Individual Drug Interactions

The ingredients in Bugleweed 450 mg interact with 16 drugs. Click any drug to see the details.

1 of the 1 ingredient in Bugleweed 450 mg interact with drugs. Each result below shows which ingredient is responsible. Bugleweed

Each ingredient & the kinds of drugs it affects

For each ingredient in Bugleweed 450 mg 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.

Bugleweed1 drug type · 16 drugs

Thyroid Hormone

Theoretically, bugleweed may alter thyroid function.
Concomitant use of bugleweed may reduce the effects of thyroid hormones by blocking peripheral conversion of thyroxine (T4) to triiodothyronine (T3).

Likelihood Probable Evidence D
Bugleweed full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Bugleweed 450 mg, 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

Bugleweed 450 mg by TerraVita Premium Collection: Common Questions

Does Bugleweed 450 mg by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Bugleweed 450 mg has a known interaction with 16 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Bugleweed 450 mg 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 bugleweed if I'm pregnant?
No. Bugleweed is rated likely unsafe during pregnancy due to insufficient safety data and possible effects on hormones. Talk with your doctor or pharmacist about alternatives if you're pregnant or planning to become pregnant.
Will bugleweed affect my thyroid medication?
Yes, possibly. Bugleweed may reduce how well your thyroid hormones work by blocking the conversion of T4 to T3, the active form your body uses. If you take any thyroid medication, check with your pharmacist before starting.
Can I use bugleweed while breastfeeding?
No. Bugleweed may reduce milk production by lowering prolactin, a hormone that supports breastfeeding. It's rated possibly unsafe and should not be used while nursing.
What is bugleweed used for?
Bugleweed is traditionally used for hyperthyroidism, insomnia, and premenstrual syndrome. However, we don't have reliable evidence that it works for any of these conditions, so its actual effectiveness is unclear.
Does bugleweed have any reported side effects?
No adverse effects were reported in the data we hold, but that doesn't guarantee you won't experience any. Because bugleweed may affect thyroid function, use it only under your healthcare provider's guidance.

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

Not sure if Bugleweed 450 mg 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.

Bugleweed 450 mg label
Go deeper

The Full Monographs Behind Bugleweed 450 mg’s Ingredients

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

Herb & supplement monograph

Bugleweed

Interacts with 16 drugs

Bugleweed is a traditional herb most often used for mild overactive thyroid symptoms and the rapid heartbeat that can come with it, but high-quality human evidence is very limited. Because i...

Read the full Bugleweed monograph →
Sources

Sources & How We Checked

Bugleweed 450 mg'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.

Bugleweed 4 references
  1. Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.
  2. Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.
  3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
  4. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

See these in context on the Bugleweed 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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