Eyebright
Euphrasia officinalis L.Orobanchaceae // aerial parts
Overview
Plant parts
aerial parts
Known constituents
iridoids, flavonoids, tannins
Research corpus coverage
Chemistry notes
- CHEMISTRY: Relevant reported constituents include iridoids; flavonoids; tannins; constituent presence alone does not establish clinical efficacy.
Uses & Evidence
Traditional / historical use
Documented traditional use — not a claim of established efficacy.
TRADITIONAL: Eyebright has been used for eye irritation; catarrh; this records historical/traditional use and does not establish efficacy.
MODERATE · regulatory monograph · WHO Monographs on Selected Medicinal Plants
Modern evidence
EVIDENCE: For the major use set (eye irritation; catarrh), the evidence assessment is insufficient: Insufficient clinical evidence.
LOW · regulatory monograph and mixed scientific literature · WHO Monographs on Selected Medicinal Plants
Preparation
Forms used traditionally
A listed form does not imply it suits every plant part, or that one preparation is interchangeable with another — see the plant’s own notes below.
PREPARATION: The medicinal material is aerial parts; traditional and modern forms include infusion/tea, tincture, powder/capsule, extract. No dose or potency is specified.
MODERATE · regulatory monograph · EMA European Union herbal monographs and list entries
Preparation-specific evidence should not be generalized across extracts, teas, oils, or whole herb.
Safety
Additional safety notes (general, unstructured)
Free-text safety notes carried from their source — not broken out by species, route, or hazard type, and not equivalent to the structured records above. Each note names the kind of source it came from.
SAFETY: Major issues include Nonsterile eye products can cause infection or injury; allergy. Contraindications/cautions include Use in the eye without sterile formulation.
MODERATE · regulatory monograph · EMA European Union herbal monographs and list entries
SAFETY: Clinically relevant interaction concerns include No established systemic interactions.
MODERATE · regulatory monograph · EMA European Union herbal monographs and list entries
Some interactions are theoretical or based on case reports/pharmacokinetics rather than outcome trials.
SAFETY: Pregnancy/lactation reference: Insufficient pregnancy/lactation evidence.
MODERATE · regulatory monograph or evidence synthesis · WHO Monographs on Selected Medicinal Plants
Absence of evidence is not evidence of safety.
Preparation × species risk matrix
Unknown means insufficient evidence was located — not that a form is safe.
Cats
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
- whole herbUnknown
Dogs
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
- whole herbUnknown
Identity
Botanical synonym
Euphrasia rostkoviana Hayne often used in older monographs
Taxonomic identity note
- Eyebright is treated here as Euphrasia officinalis L. in the family Orobanchaceae; recorded older names include Euphrasia rostkoviana Hayne often used in older monographs.
Sources
Research records are source-linked but may not yet be editorially reviewed.
WHO monograph
EMA monograph
- Plants of the World Online1 claim
botanical taxonomy database