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Dietary supplement

Mullein Flower Essence Ingredients & Drug Interactions

by Flower Essence Services

Mullein Flower Essence label
See full label image
Liquid Category: Botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 9, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Mullein Flower Essence 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: Minor

Mullein Flower Essence is a dietary supplement by Flower Essence Services with 1 active ingredient. Its ingredients are commonly taken for cough and chest congestion, sore throat, bronchitis and respiratory irritation.Based on those ingredients, 122 medications have a known interaction with it, the most serious rated minor. The ingredients most likely to interact are infusion (1:6000) of Verbascum thapsus. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

Jump to a section

Check Your Meds Against Mullein Flower Essence by Flower Essence Services

Ask about any prescription or over-the-counter medication and we check it for interactions with Mullein Flower Essence by Flower Essence Services — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Mullein Flower Essence by Flower Essence Services

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 Aug 20, 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 1 active ingredient.

Mullein Flower Essence contains one active ingredient: an infusion (1:6000 concentration) of Verbascum thapsus, the common mullein plant. The remaining ingredients are water and brandy, which serve as the liquid base and preservative for the extract.

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 Mullein product and its label doesn't state a use — see Mullein'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 effectiveness evidence for mullein flower essence hasn't been established in the data we hold. Studies haven't yet provided reliable evidence to rate it for bronchitis, asthma, cough, migraine headaches, or diarrhea—the conditions it's traditionally used for.

That doesn't mean it doesn't work; it means the science isn't there yet to say either way.

The evidence, ingredient by ingredient 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 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.

Mullein is generally well tolerated for short-term use, though human safety data are limited. The main concern is skin contact: a small number of case reports have described dermatitis (skin inflammation) after direct contact with the plant or inhalation of plant dust, confirmed by patch testing.

Because safety information during pregnancy and breastfeeding is insufficient, the data advise against use in both. This product contains brandy as a preservative, so keep that in mind if you're avoiding alcohol.

Side effects, ingredient by ingredient Mullein

Meds to double-check

Minor interactions only
Known Interaction Concern · database check
Minor only

Only Minor-severity interactions are documented for these ingredients.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Mullein.
  • The most serious interaction on file is rated Minor.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 122 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.

Before taking Mullein Flower Essence, double-check any blood thinners or antiplatelet drugs you're on—warfarin, aspirin, clopidogrel, and similar medications—with your doctor or pharmacist. The product has documented Minor interactions with these drug types due to mild blood-thinning effects in the plant.

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. Only minor medication interactions are documented, and safety information is well characterized.

Mullein flower essence might interest you if you're exploring traditional plant remedies for respiratory or digestive support, but the evidence backing those uses isn't solid yet. If you take any blood thinner or antiplatelet medication, check with your doctor or pharmacist before starting it.

And if you're pregnant or breastfeeding, there isn't enough safety data to know whether it's okay—talk it over with your healthcare provider.

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 26, 2014.

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 Mullein Flower Essence, straight from the product label.

Brand Flower Essence Services
Barcode (UPC) 782932110414
Net contents 1 fl. Oz.; 30 mL
Market status On market
Date entered into DSLD Feb 26, 2014
DSLD ID 30010
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Organic
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 Mullein Flower Essence by Flower Essence Services, 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:
4 Drop(s)
Maximum serving Sizes:
4 Drop(s)
UPC/BARCODE
782932110414
IngredientAmount% DV
infusion (1:6000) of Verbascum thapsus0 NP--

Other ingredients: Water, Brandy

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.
Suggested/Recommended/Usage/Directions

Suggested use: Four drops, four times daily

Seals/Symbols

FES Quintessentials(TM)

DEMETER(R)

Formulation

Certified organic by Stellar Certification Services, Inc.

Brand IP Statement(s)

Certified Biodynamic(R) by the Demeter Association, Inc.

General Statements

BEST BY 12/2020 101214

Professional quality backed by three decades of international use.

FDA Statement of Identity

herbal supplement

General

101214

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

See for yourself

Mullein Flower Essence by Flower Essence Services label

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

Mullein Flower Essence 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 Mullein Flower Essence by Flower Essence Services

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

Serving size4 Drop(s) Dosage formLiquid Amounts shown are per serving.

Infusion (1:6000) of Verbascum thapsus

Interacts with
122 drugs
0 NP per serving

Mullein is a traditional herbal remedy most often used as a tea or syrup to soothe coughs, sore throats, and respiratory irritation. High-quality huma...

Infusion (1:6000) of Verbascum thapsus monograph & interactions

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

Interaction report

Mullein Flower Essence by Flower Essence Services Drug Interactions

Want to check YOUR meds against Mullein Flower Essence?

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
122Drugs
122 Minor

Ingredients driving the most interactions

infusion (1:6000) of Verbascum thapsus 122

Individual Drug Interactions

The ingredients in Mullein Flower Essence interact with 122 drugs. Click any drug to see the details.

1 of the 1 ingredient in Mullein Flower Essence interact with drugs. Each result below shows which ingredient is responsible. infusion (1:6000) of Verbascum thapsus

Each ingredient & the kinds of drugs it affects

For each ingredient in Mullein Flower Essence 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.

infusion (1:6000) of Verbascum thapsus1 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
infusion (1:6000) of Verbascum thapsus full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Mullein Flower Essence, from the product label.

Flower Essence Services

See all Flower Essence Services products
Phone Number
800-548-0075
Pharmacist Counseling Corner

Mullein Flower Essence by Flower Essence Services: Common Questions

Does Mullein Flower Essence by Flower Essence Services interact with any medications?
Yes. Based on its ingredients, Mullein Flower Essence has a known interaction with 122 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Mullein Flower Essence 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 while I'm on a blood thinner like warfarin?
Mullein does have mild blood-thinning effects, so it may add to what your medication is already doing. Check with your doctor or pharmacist before starting it—they can tell you whether it's okay for your specific situation.
Is mullein safe during pregnancy?
The safety data aren't strong enough to say it's okay during pregnancy, so it's best avoided. If you're pregnant or planning to be, talk with your doctor or pharmacist about whether to use it.
Can I use this while breastfeeding?
There isn't enough data to consider it safe while breastfeeding. Talk with your doctor or pharmacist for personalized advice on whether you can use it.
Will this help my cough?
Mullein is traditionally used for cough, but the science hasn't yet provided reliable evidence that it works. The evidence is marked insufficient, so we don't know either way from the studies available.
Has anyone had side effects from mullein?
A few case reports describe skin inflammation after direct contact with the plant or breathing in plant dust. Overall, it's generally well tolerated for short-term use, though human safety data are limited.

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

Not sure if Mullein Flower Essence 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.

Mullein Flower Essence label
Go deeper

The Full Monographs Behind Mullein Flower Essence’s Ingredients

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

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

Mullein Flower Essence'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 2 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.

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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