Interactions on record — worth a quick check against your medications. Based on 3 of 7 ingredients. Check your meds →
Dietary supplement

Bronchitis Formula Powder Ingredients & Drug Interactions

by TerraVita Premium Collection

Bronchitis Formula Powder label
See full label image
Powder Category: Botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Bronchitis Formula 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

Bronchitis Formula Powder is a dietary supplement by TerraVita Premium Collection with 7 active ingredients. Its ingredients are commonly taken for sore throat and mouth irritation, mild diarrhea and digestive upset, minor wounds and skin irritation.Based on those ingredients, 460 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Coltsfoot, Powder, Mullein powder, Agrimony, 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 Bronchitis Formula Powder by TerraVita Premium Collection

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

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HelloPharmacist Scorecard of Bronchitis Formula 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

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 7 active ingredients.
  • “Proprietary Blend” is a proprietary blend — the label gives one combined amount (1,000 mg) without saying how much of each component you get.

This powder contains 7 ingredients, including a proprietary blend of agrimony, coltsfoot, common ivy, mallow, mullein, poppy, and tarrify. The specific amount of each herb in the blend isn't disclosed on the label.

All of these are traditional herbal ingredients used to support respiratory health; there are no inactive fillers or other ingredients listed.

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: respiratory health and bronchitis support.
  • We looked for evidence on: Asthma, Bronchitis, Cough, Influenza, Pneumonia, chest congestion — and 3 related terms.
  • The closest evidence on file: Mullein is rated "Insufficient Reliable Evidence To Rate" for Bronchitis (Natural Medicines).
  • Also on file: Mullein is rated "Insufficient Reliable Evidence To Rate" for Asthma, Cough, Influenza, Pneumonia.

The evidence for this formula is limited. Mullein is the only ingredient with effectiveness data on file, and for the respiratory purposes this product addresses — bronchitis and cough — the evidence is rated as insufficient.

We don't have effectiveness ratings for agrimony, coltsfoot, common ivy, mallow, poppy, or tarrify, so we can't speak to how well they work.

The evidence, ingredient by ingredient Agrimony Coltsfoot Mullein

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 2 of the 3 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 3 of 3.
  • General safety write-ups exist for 3 of 3.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Three of the herbs here raise safety concerns. Coltsfoot is the biggest worry — it contains liver-toxic pyrrolizidine alkaloids that can cause serious liver and lung damage with chronic use; the product facts advise using only certified PA-free versions, if at all.

Agrimony has limited human safety data and is best used cautiously. Mullein is generally well tolerated for short-term use, though human safety data are sparse.

For pregnancy, all three of these ingredients carry warnings: agrimony and mullein are advised against due to insufficient safety information, while coltsfoot is rated as likely unsafe. For breastfeeding, agrimony and coltsfoot are advised against — coltsfoot because toxic alkaloids may enter breast milk — and mullein lacks enough data to be considered safe.

Side effects, ingredient by ingredient Agrimony Coltsfoot Mullein

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?
  • 3 of the 3 matched ingredients can interact with medications — Mullein, Agrimony, Coltsfoot.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; diabetes medications.
  • For scale: 461 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 blood thinners (anticoagulants and antiplatelet drugs like warfarin, clopidogrel, or aspirin), blood pressure medications (antihypertensive drugs), or antidiabetes drugs, check your exact medications with the tool on this page before starting. Also flag any medications that induce liver metabolism (such as carbamazepine or phenytoin), as coltsfoot may amplify its own toxic metabolites in that case.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with insufficient evidence for its stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

This product is intended for respiratory support, but the evidence for how well it works isn't established in our data. If you take blood thinners, blood pressure medications, diabetes drugs, or medications metabolized by your liver, you'll want to check this product against your exact medications before starting — the herb content poses documented interaction risks.

Pregnant women and those breastfeeding should talk with their pharmacist or doctor before use, particularly because coltsfoot carries serious safety warnings.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 3 of 7 active ingredients 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 Bronchitis Formula Powder, straight from the product label.

Brand TerraVita Premium Collection
Barcode (UPC) 064435121655
Net contents 1 Ounce(s)
Market status On market
Date entered into DSLD Feb 21, 2023
DSLD ID 285090
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 Bronchitis Formula 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
064435121655
IngredientAmount% DV
Proprietary Blend1000 mg--
Agrimony, Powder0 NP--
Coltsfoot, Powder0 NP--
Common Ivy, Powder0 NP--
Mallow, Powder0 NP--
Mullein powder0 NP--
Poppy, Powder0 NP--
Tarrify, Powder0 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.
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.

Formula

Agrimony, coltsfoot, mullein and more

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

See for yourself

Bronchitis Formula Powder by TerraVita Premium Collection label

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

Bronchitis Formula 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 Bronchitis Formula Powder by TerraVita Premium Collection

These are the 7 active ingredients this product is made of. Select any to open its full monograph.

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

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Proprietary Blend

1000 mg per serving
Interaction report

Bronchitis Formula Powder by TerraVita Premium Collection Drug Interactions

Want to check YOUR meds against Bronchitis Formula 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
460Drugs
460 Moderate

Ingredients driving the most interactions

Coltsfoot, Powder 374
Mullein powder 122
Agrimony, Powder 86

Individual Drug Interactions

The ingredients in Bronchitis Formula Powder interact with 460 drugs. Click any drug to see the details.

3 of the 7 ingredients in Bronchitis Formula Powder interact with drugs. Each result below shows which ingredient is responsible. Coltsfoot, Powder Mullein powder Agrimony, Powder

Each ingredient & the kinds of drugs it affects

For each ingredient in Bronchitis Formula Powder with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Coltsfoot, Powder3 drug types · 374 drugs

Anticoagulant/Antiplatelet Drugs

Concomitant use might increase the risk of bleeding due to decreased platelet aggregation. Coltsfoot has been reported to inhibit platelet aggregation; avoid concomitant use. Some of these drugs include aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others.

Likelihood Possible Evidence D
Antihypertensive Drugs

Theoretically, excessive doses of coltsfoot may interfere with antihypertensive or cardiovascular therapy.

Likelihood Possible Evidence D
Cytochrome P450 3A4 (Cyp3A4) Inducers

Hepatotoxic pyrrolizidine alkaloids (PA) are substrates of cytochrome P450 3A4 (CYP3A4). Theoretically, drugs that induce CYP3A4 might increase the conversion of PAs to toxic metabolites. Some drugs that induce CYP3A4 include carbamazepine (Tegretol), phenobarbital, phenytoin (Dilantin), rifampin, rifabutin (Mycobutin), and others.

Likelihood Possible Evidence D
Coltsfoot, Powder full monograph & interactions

Mullein powder1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Lab tests on extracts from different parts of common and dense-flowered mullein plants show that they do have some blood-thinning effects, as they increase the time it takes for blood to clot. This is likely due to at least one of the known constituents of muellein, triterpenoid saponins. However, the effects appear to be mild and results have been inconsistent. Extracts from different plant parts have been show to have varying anticoagulant strengths, with water-based ones being more potent than alcohol-based extracts.

Likelihood Unlikely Evidence A
Mullein powder full monograph & interactions

Agrimony, Powder1 drug type · 86 drugs

Antidiabetes Drugs

Theoretically, taking agrimony with antidiabetes drugs might increase the risk of hypoglycemia.
Agrimony has demonstrated hypoglycemic effects in animal research.

Likelihood Possible Evidence D
Agrimony, Powder full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Bronchitis Formula 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

Bronchitis Formula Powder by TerraVita Premium Collection: Common Questions

Does Bronchitis Formula Powder by TerraVita Premium Collection interact with any medications?
Yes. Based on its ingredients, Bronchitis Formula Powder has a known interaction with 460 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Bronchitis Formula Powder contains 7 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is 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.
Does this formula actually work for bronchitis?
The evidence isn't established in our data. Mullein, one of the herbs here, has insufficient reliable evidence for bronchitis and cough according to our sources. We don't have effectiveness information for the other ingredients in this blend.
Is coltsfoot in this powder safe?
Coltsfoot contains liver-toxic compounds called pyrrolizidine alkaloids that can cause serious liver and lung injury, especially with long-term use. The safety information advises using only certified PA-free products if you choose to use coltsfoot at all, and it's best avoided during pregnancy and breastfeeding.
Can I take this if I'm pregnant or breastfeeding?
No, this product is not advised during pregnancy or breastfeeding. Agrimony, coltsfoot, and mullein all lack sufficient safety data or are rated unsafe for these periods. Talk with your doctor or pharmacist before use.
What are these herbs supposed to do?
All seven ingredients — agrimony, coltsfoot, common ivy, mallow, mullein, poppy, and tarrify — are traditional herbal ingredients used to support respiratory health, but the amounts of each in the proprietary blend are not disclosed on the label.
Does mullein interact with blood thinners?
Yes, but mildly. Lab tests show mullein extracts have some blood-thinning effects and increase clotting time slightly. This is rated as a minor interaction, so the clinical impact appears small, but mention it to your pharmacist if you take blood thinners.

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.

Bronchitis Formula Powder label
Go deeper

The Full Monographs Behind Bronchitis Formula Powder’s Ingredients

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

Herb & supplement monograph

Agrimony

Interacts with 86 drugs

Agrimony is a traditional European herb rich in tannins that has long been used for sore throats, mild diarrhea, and minor skin problems. Good-quality human studies are very limited, so its...

Read the full Agrimony monograph → Herb & supplement monograph

Coltsfoot

Interacts with 374 drugs

Coltsfoot is a traditional herb long used to soothe coughs and clear mucus, but solid human evidence for these uses is lacking. More importantly, the raw plant can contain liver-toxic pyrrol...

Read the full Coltsfoot monograph → Herb & supplement monograph

Mullein

Interacts with 122 drugs

Mullein is a traditional herbal remedy most often used as a tea or syrup to soothe coughs, sore throats, and respiratory irritation. High-quality human studies are lacking, so its benefits a...

Read the full Mullein monograph →
Sources

Sources & How We Checked

Bronchitis Formula 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 14 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.

Agrimony 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. Gray AM, Flatt PR. Actions of the traditional anti-diabetic plant, Agrimony eupatoria (agrimony): effects on hyperglycaemia, cellular glucose metabolism and insulin secretion. Br J Nutr 1998;80:109-14.
  4. Swanston-Flatt SK, Day C, Bailey CJ, Flatt PR. Traditional plant treatments for diabetes. Studies in normal and streptozotocin diabetic mice. Diabetologia 1990;33:462-4. PubMed

See these in context on the Agrimony monograph →

Coltsfoot 8 references
  1. Roulet M, Laurini R, Rivier L, Calame A. Hepatic veno-occlusive disease in newborn infant of a woman drinking herbal tea. J Pediatr 1988;112:433-6. PubMed
  2. WHO working group. Pyrrolizidine alkaloids. Environmental Health Criteria, 80. WHO: Geneva, 1988.
  3. Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46. PubMed
  4. Roeder E. Medicinal plants in Europe containing pyrrolizidine alkaloids. Pharmazie 1995;50:83-98.
  5. Wilson BE, Hobbs WN. Case report: pseudoephedrine-associated thyroid storm: thyroid hormone-catecholamine interactions. Am J Med Sci 1993;306:317-9. PubMed
  6. Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20. PubMed
  7. Hwang SB, Chang MN, Garcia ML, et al. L-652,469--a dual receptor antagonist of platelet activating factor and dihydropyridines from Tussilago farfara L. Eur J Pharmacol 1987;141:269-81. PubMed
  8. Freshour JE, Odle B, Rikhye S, Stewart DW. Coltsfoot as a potential cause of deep vein thrombosis and pulmonary embolism in a patient also consuming kava and blue vervain. J Diet Suppl 2012;9:149-54. PubMed

See these in context on the Coltsfoot monograph →

Mullein 2 references
  1. Castro AI, Carmona JB, Gonzales FG, Nestar OB. Occupational airborne dermatitis from gordolobo (Verbascum densiflorum). Contact Dermatitis 2006;55(5):301.
  2. Flores Echaiz C, Al Ali A, Cao AQ, Sasseville D. Simultaneous contact dermatitis caused by Asteraceae and Verbascum thapsus. Contact Dermatitis 2017;76(5):316-8.

See these in context on the Mullein 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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