Identity & origin
BOTANICAL IDENTITY
The right name is the first step.
The shared monograph “verbasci flos” includes Verbascum densiflorum Bertol.. This profile is limited to the parts and preparations described in it.
Inclusion in a collective monograph does not prove that each species has been studied separately in humans. The form and pharmaceutical quality described remain decisive.
Also known as: Verbascum thapsiforme, Great mullein
A common name and photograph do not guarantee identification. Check the botanical name and part indicated on a traceable product.
An illustration is not enough to identify a plant for consumption. Do not forage for a species based solely on this profile.
Uses & evidence
UNDERSTANDING THE USES
Properties & uses.
Irritated throat with dry cough from a cold
Flowers as herbal tea: traditional relief of sore throat with dry cough and cold. The three monographed species are covered; efficacy specific to this species alone is not established.
Use considered plausible in a traditional-use monograph. That status alone does not demonstrate clinical efficacy.
Read the sourceThe traditional uses described are not clinical proof of effectiveness. Evidence for one preparation cannot automatically be applied to another.
Precautions before use
BEFORE ANY USE
Precautions & contraindications.
This guidance does not cover every individual situation. Missing information is not a guarantee of safety.
Contraindications & precautions
- Source-listed contraindicationAllergy to the substance or preparation.Source
- PrecautionBreathing difficulty, fever or purulent sputum require medical advice.Source
Medicine interactions
- No interaction reported in the sourceNo interactions reported in the consulted source for the described preparations; this does not establish compatibility with every medicine.Source
“Reported” does not prove causality; “possible” may reflect indirect evidence. “None reported” means none in the cited source, not that all combinations have been studied. Do not stop a prescribed treatment based on this profile.
Adverse effects
- Stop use if an unexpected reaction occurs; limited data do not mean absence of risk.
Pregnancy & breastfeeding
Insufficient data: medicinal use is not recommended during pregnancy or breastfeeding. This data gap is distinct from an established contraindication.
SourceChildren & adolescents
Medicinal use is not recommended below 12 years because data are insufficient; adult preparations and doses cannot be extrapolated.
SourceIf symptoms persist, worsen or are unusual, consult a healthcare professional. In an emergency, contact the emergency services.
Forms & how they are used
DOCUMENTED FORMS
One plant, several preparations.
Only forms documented in this profile’s sources are presented.
InfusionFlowers · Route: oral
Preparation described in the shared monograph.
Please note: Follow the product's package leaflet; concentrations are not interchangeable.
Read the sourceUnderstanding the plant’s actions
EXPLORE THE EVIDENCE
How does the plant act?
This mullein provides flowers for the comfort of an irritated throat with dry cough. The monograph brings together several species; no separate human efficacy for this species is demonstrated in the report.
Constituents to know.
Their presence and quantity depend on the plant part and preparation.
- Flower profile
- The report notably describes flavonoid glycosides and verbascoside in V. densiflorum flowers. No constituent is recognised in it as a proven therapeutic active ingredient.Read the reference
Traditional throat soothing
The presence of mucilage makes a local soothing effect plausible, without a quantified clinical mechanism.
Use considered plausible in a traditional-use monograph. That status alone does not demonstrate clinical efficacy.
Read the referenceWhat this means for preparation.
Check for the word “flowers” and filter a preparation correctly according to its package leaflet. A reference mentioning only Verbascum is not sufficient to identify the correct material.
Studies, findings & limitations
THE RESEARCH
What the research shows.
A laboratory or animal result alone does not demonstrate a benefit in humans. Each result must be read alongside the preparation studied and its limitations.
No specific clinical trial
The references do not establish a benefit. Lack of evidence is not assurance of safety.
- Type of research
- Official EMA review
- Preparation concerned
- Mullein flowers, not leaves or roots.
- Observed results
- The conclusion rests on traditional use.
- Limitations to consider
- Neither tests on other Verbascum species nor the activity of an isolated substance demonstrate relief from this species.
What can we take from this?
The absence of a trial prevents measurement of speed of action or promises of a shorter cold.
Documentary review dated 09/10/2026. The references remain available to check the context.
Sources & last review
CHECKING REFERENCES
Sources for this profile.
- EMA — verbasci flosAccessed on 09/10/2026
- EMA — final assessment of mullein flowersAccessed on 09/10/2026
- EMA — Verbascum, fleurs, monographie finale 2018Accessed on 09/10/2026
Image: Magnus Manske · CC BY-SA 3.0. View the original image and its licence. Image resized and converted to WebP.
