Interactions on record — worth a quick check against your medications. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Mullein Blend Ingredients & Drug Interactions

by Herb Pharm

Mullein Blend label
See full label image
Liquid Category: Botanical
Most serious interaction: Minor
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Mullein Blend 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 Blend is a dietary supplement by Herb Pharm with 2 active ingredients. 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 Mullein Leaf Extract, Fresh, Undried. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Mullein Blend by Herb Pharm

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

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HelloPharmacist Scorecard of Mullein Blend by Herb Pharm

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 2 active ingredients.
  • “Certified Organic Extract Blend” is a proprietary blend — the label gives one combined amount (680 mg) without saying how much of each component you get.

This blend contains 2 active ingredients: Mullein Leaf Extract (fresh, undried) and Mullein Flower Extract (fresh, undried). Both parts of the plant are included to give you a fuller profile of what mullein has to offer.

The product is delivered in a liquid form, made with cane alcohol, distilled water, and glycerin as the inactive carriers.

Does it work?

Not established
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 established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Mullein's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: respiratory system support.
  • We looked for evidence on: Asthma, Bronchitis, Cough, Influenza, Pneumonia, chest congestion — and 2 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 mullein hasn't been firmly established yet. Our data rates it as having insufficient reliable evidence for bronchitis, asthma, cough, migraine headache, and diarrhea — meaning the science simply isn't settled enough to say whether it works for those uses.

That doesn't mean it doesn't work; it means more rigorous human studies are needed before we can be confident.

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 in the short term, though human safety data are limited. Two cases of dermatitis (a skin reaction) have been reported after direct contact with the whole plant or breathing in plant dust, though one patient also reacted to other plants, so individual sensitivity varies.

Mullein should be avoided during pregnancy and breastfeeding — there isn't enough safety information to know it's safe in those situations.

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.

Double-check this product if you take any blood thinners or antiplatelet medications — the minor blood-thinning effects of mullein could add to what your drug already does. Use the search tool on this page to verify your exact medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Only minor medication interactions are documented, and safety information is well characterized.

Mullein Blend is worth considering if you're interested in traditional respiratory support, though the evidence for specific conditions isn't clear yet. If you take blood thinners or antiplatelet drugs, check with your pharmacist first.

Keep use short-term and avoid it if you're pregnant or nursing. It's generally well tolerated, but talk to your pharmacist if you have questions about whether it fits your situation.

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

Assessment coverage: 2 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jun 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 Mullein Blend, straight from the product label.

Brand Herb Pharm
Barcode (UPC) 090700001926
Net contents 4 Fluid Ounce(s); 120 mL
Market status On market
Date entered into DSLD Jun 25, 2025
DSLD ID 334542
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years), Organic, Gluten 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 Mullein Blend by Herb Pharm, 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:
0.7 mL
Maximum serving Sizes:
0.7 mL
Servings per container
168
UPC/BARCODE
090700001926
IngredientAmount% DV
Certified Organic Extract Blend680 mg--
Mullein Leaf Extract, Fresh, Undried0 NP--
Mullein Flower Extract, Fresh, Undried0 NP--

Other ingredients: Cane Alcohol, Water, Distilled, Glycerin

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 Shake well before using Adults: Add 1 squeeze of the dropper bulb to 2 oz. of water or juice, 2 to 5 times per day. Best taken between meals.

Precautions

Keep out of the reach of children

Storage

Store away from heat & light

Formula

Verbascum spp.

Mullein Blend liquid extract

Formulation

Respiratory system

Gluten-free

USDA Organic Certified organic by Organic Certifiers

Seals/Symbols

USDA Organic

FDA Statement of Identity

Herbal Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the FDA. This product is 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

Mullein Blend by Herb Pharm label

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

Mullein Blend 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 Blend by Herb Pharm

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size0.7 mL Dosage formLiquid Servings per container168 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.

Certified Organic Extract Blend

680 mg per serving

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

Interaction report

Mullein Blend by Herb Pharm Drug Interactions

Want to check YOUR meds against Mullein Blend?

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

Mullein Leaf Extract, Fresh, Undried 122

Individual Drug Interactions

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

1 of the 2 ingredients in Mullein Blend interact with drugs. Each result below shows which ingredient is responsible. Mullein Leaf Extract, Fresh, Undried

Each ingredient & the kinds of drugs it affects

For each ingredient in Mullein Blend 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.

Mullein Leaf Extract, Fresh, Undried1 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 Leaf Extract, Fresh, Undried full monograph & interactions
The maker

Brand information

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

Herb Pharm

See all Herb Pharm products
Name
Herb Pharm
City
Williams
State
OR
ZipCode
97544
Phone Number
800-348-4372
Web Address
www.herb-pharm.com
Pharmacist Counseling Corner

Mullein Blend by Herb Pharm: Common Questions

Does Mullein Blend by Herb Pharm interact with any medications?
Yes. Based on its ingredients, Mullein Blend 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 Blend contains 2 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.
Can I take this while pregnant or breastfeeding?
No — the safety data advises against it. There isn't enough information to know it's safe during pregnancy or while breastfeeding. Talk with your doctor or pharmacist about what's right for you.
What is mullein actually used for?
Mullein has been used traditionally to support respiratory health, particularly for conditions like bronchitis and cough. However, the scientific evidence hasn't yet confirmed whether it truly works for these purposes — we simply don't have enough reliable human studies yet.
Are there any side effects I should watch for?
Mullein is generally well tolerated for short-term use. A couple of cases describe dermatitis (skin irritation) from direct contact with the plant or inhaling plant dust, though only specific people had that reaction. Long-term safety data are limited, so stick to short-term use.
Is this safe if I have sensitive skin?
This is a liquid you drink, not a topical product, so typical skin sensitivity to lotions or creams shouldn't be an issue. But if you've had a reaction to mullein or similar plants before, let your pharmacist know.
Does this product contain any fillers?
It contains inactive ingredients: cane alcohol, distilled water, and glycerin. These are carriers that help deliver the active mullein extracts — standard for liquid herbal products.

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.

Mullein Blend label
Go deeper

The Full Monographs Behind Mullein Blend’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 Blend'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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