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Dietary supplement

Mullein Leaf Vanilla Flavor Ingredients & Drug Interactions

by TerraVita

Mullein Leaf Vanilla Flavor 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 Leaf Vanilla Flavor 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 Leaf Vanilla Flavor is a dietary supplement by TerraVita 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 Mullein Leaf Glycerite Liquid Extract. 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 Leaf Vanilla Flavor by TerraVita

Ask about any prescription or over-the-counter medication and we check it for interactions with Mullein Leaf Vanilla Flavor by TerraVita — and tell you which ingredient is responsible.

Pharmacist-reviewed data Checks every ingredient Answer in seconds
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HelloPharmacist Scorecard of Mullein Leaf Vanilla Flavor by TerraVita

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 27, 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 is a single-ingredient liquid: mullein leaf glycerite extract with vanilla flavoring. Mullein is a plant whose leaves have been used traditionally for respiratory support.

The extract here is made using glycerin, a common solvent that also acts as a preservative and sweetener in herbal liquids.

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 evidence we hold doesn't establish that mullein leaf works for any of the conditions it's marketed for — cough, bronchitis, asthma, migraine headache, and diarrhea all carry a rating of insufficient reliable evidence to rate. That doesn't mean it doesn't work; it means the clinical trial data we have isn't strong enough to say one way or the other.

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. A small number of case reports describe dermatitis (skin inflammation) after direct skin contact with the whole plant or inhalation of plant dust, though those cases involved occupational or topical exposure rather than taking it by mouth.

Pregnancy and breastfeeding are not recommended — there isn't enough safety information to know either way, so talk with your doctor or pharmacist for personalized advice if you're pregnant, planning pregnancy, or nursing.

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 you start, check with your doctor or pharmacist if you take any blood thinners (anticoagulants) or antiplatelet drugs — aspirin, warfarin, clopidogrel, and similar medications. Mullein leaf extract can slow blood clotting mildly, and combining it with these drugs could add to that effect.

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

Mullein leaf extract is a single-ingredient liquid that's generally well tolerated short-term, but the clinical evidence for what it's used for — cough, bronchitis, asthma, and other respiratory conditions — isn't established. Its main caution is a mild blood-thinning effect, so if you take any blood thinner, check with your doctor or pharmacist first.

Talk with your healthcare provider about whether this is right for you and your specific medications.

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 Nov 22, 2022.

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 Leaf Vanilla Flavor, straight from the product label.

Brand TerraVita
Barcode (UPC) 064435131272
Net contents 1 Fluid Ounce(s); 30 mL
Market status On market
Date entered into DSLD Nov 22, 2022
DSLD ID 281105
Product type Botanical
Supplement form Liquid
Dietary claims / uses All Other
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 Mullein Leaf Vanilla Flavor by TerraVita, 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:
25 Drop(s)
Maximum serving Sizes:
40 Drop(s)
Servings per container
227
UPC/BARCODE
064435131272
IngredientAmount% DV
Mullein Leaf Glycerite Liquid Extract0.13 mL--

Other ingredients: Glycerin, Vanilla flavor

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.
Brand IP Statement(s)

Copyright 2005 TerraVita - Distributed by ZooScape LLC, All Rights Reserved.

Formula

Glycerite liquid extract (1:5) Vanilla Flavored

Formulation

Alcohol free

Suggested/Recommended/Usage/Directions

Suggested Use: Take 25-40 drops of extract in a small amount of warm water 3-4 times daily. Shake well before using.

Precautions

Keep away from children.

Do not use if safety seal around cap is broken or missing.

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

See for yourself

Mullein Leaf Vanilla Flavor by TerraVita label

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

Mullein Leaf Vanilla Flavor 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 Leaf Vanilla Flavor by TerraVita

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

Serving size25 Drop(s) Dosage formLiquid Servings per container227 Amounts shown are per serving.

Mullein Leaf Glycerite Liquid Extract

Interacts with
122 drugs
0.13 mL 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...

Mullein Leaf Glycerite Liquid Extract monograph & interactions

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

Interaction report

Mullein Leaf Vanilla Flavor by TerraVita Drug Interactions

Want to check YOUR meds against Mullein Leaf Vanilla Flavor?

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 Glycerite Liquid Extract 122

Individual Drug Interactions

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

1 of the 1 ingredient in Mullein Leaf Vanilla Flavor interact with drugs. Each result below shows which ingredient is responsible. Mullein Leaf Glycerite Liquid Extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Mullein Leaf Vanilla Flavor 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 Glycerite Liquid Extract1 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 Glycerite Liquid Extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Mullein Leaf Vanilla Flavor, from the product label.

TerraVita

See all TerraVita products
Name
ZooScape LLC
Phone Number
844-449-0444
Web Address
www.ZooScape.com
Pharmacist Counseling Corner

Mullein Leaf Vanilla Flavor by TerraVita: Common Questions

Does Mullein Leaf Vanilla Flavor by TerraVita interact with any medications?
Yes. Based on its ingredients, Mullein Leaf Vanilla Flavor 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 Leaf Vanilla Flavor 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 on aspirin or another blood thinner?
Mullein leaf has mild blood-thinning effects in lab studies, so it could add to what your blood thinner does. Check with your doctor or pharmacist before combining it with any anticoagulant or antiplatelet drug — they know your exact dose and health situation and can advise whether it's safe for you.
Is mullein safe to take while pregnant or breastfeeding?
The safety data aren't there — there isn't enough information to know either way. The product facts advise against use during pregnancy and breastfeeding, so talk with your doctor or pharmacist about your options if you're pregnant, planning pregnancy, or nursing.
Does mullein actually work for cough or bronchitis?
We don't have reliable evidence to say it does. The clinical trials we hold don't establish that mullein is effective for cough, bronchitis, asthma, migraine, or diarrhea — that doesn't mean it's ineffective, just that the data isn't strong enough to make that claim.
What are the side effects?
Mullein is generally well tolerated short-term, though human safety data are limited. A small number of case reports describe dermatitis after direct skin contact with the plant or inhaling plant dust, but those don't reflect what happens when you take it by mouth as this liquid does.
What is mullein leaf used for?
It's traditionally used for respiratory support — cough, bronchitis, and asthma — though our data don't establish that it works for those purposes. It's also been used for migraine and diarrhea, but again, the evidence isn't there.

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

Not sure if Mullein Leaf Vanilla Flavor 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 Leaf Vanilla Flavor label
Go deeper

The Full Monographs Behind Mullein Leaf Vanilla Flavor’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 Leaf Vanilla Flavor'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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