Plant Comparison
Eyebright vs Elecampane
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Eyebright and Elecampane: they share 8 indicated uses (arthritis / joint pain, cancer (anticancer research), cough, …); 2 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Eyebright | Elecampane | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 2/10 | Comparable evidence |
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Cough | 1/10 | 1/10 | Comparable evidence |
| Infection (general) | 2/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 2/10 | 2/10 | Comparable evidence |
| Respiratory support | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 2/10 | Comparable evidence |
| Wounds | 1/10 | 2/10 | Comparable evidence |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Give the plant its anti-inflammatory action on irritated tissue.
The antimicrobial and anti-inflammatory principles of the root; the eudesmane core and the alpha,beta-methylene-lactone ring are essential for the antimicrobial activity.
A fructan polysaccharide abundant in the root (the genus Inula gives inulin its name).
Pharmacological Actions
Astringent and anti-inflammatory for eye irritation, redness and conjunctivitis (traditional, as an eye compress or bath) - an open prospective cohort of Euphrasia single-dose eye drops reported recovery or clear improvement in most patients with conjunctivitis
Anti-inflammatory - sesquiterpene lactones (alantolactone, isoalantolactone) inhibit NF-kB and MAPK signalling and pro-inflammatory cytokines; total sesquiterpene lactones eased arthritis in animal models (potential in rheumatoid arthritis)
Antimicrobial, notably anti-staphylococcal (membrane-damaging) and anti-mycobacterial (active against Mycobacterium tuberculosis in vitro); supports respiratory and skin infection
Traditional & Indicated Uses
Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)
inferred from anti-inflammatory action
inferred from anticancer action
Soothes upper-respiratory catarrh and mild infection (traditional)
Astringent and anti-inflammatory for eye irritation, redness and conjunctivitis (traditional, as an eye compress or bath) - an open prospective cohort of Euphrasia single-dose eye drops reported recovery or clear improvement in most patients with conjunctivitis; Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)
Eases eye strain and watery, itchy eyes from allergy (hay fever / allergic conjunctivitis)
Soothes upper-respiratory catarrh and mild infection (traditional)
inferred from anti-inflammatory action
Soothes upper-respiratory catarrh and mild infection (traditional)
inferred from anti-inflammatory action
Anti-inflammatory - sesquiterpene lactones (alantolactone, isoalantolactone) inhibit NF-kB and MAPK signalling and pro-inflammatory cytokines; total sesquiterpene lactones eased arthritis in animal models (potential in rheumatoid arthritis)
Expectorant for productive cough and bronchitis (long-standing respiratory remedy)
inferred from anticancer action
Expectorant for productive cough and bronchitis (long-standing respiratory remedy); Soothes irritated airways / chronic catarrh (traditional)
Antimicrobial, notably anti-staphylococcal (membrane-damaging) and anti-mycobacterial (active against Mycobacterium tuberculosis in vitro); supports respiratory and skin infection
inferred from anti-inflammatory action
inferred from expectorant action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
CRITICAL: do not put non-sterile, homemade eyebright preparations directly into the eye - this risks serious eye infection. Use only commercially prepared sterile products in the eye, or apply a strained, cooled infusion as a compress over closed eyelids.
Traditional use only; persistent eye symptoms, pain, discharge or vision change need assessment by an eye-care professional. Safety in pregnancy and breastfeeding is not established.
The sesquiterpene lactones (especially alantolactone) are known skin sensitisers and can cause allergic contact dermatitis; people sensitive to the daisy family (Asteraceae) should be cautious.
Large doses can cause nausea, vomiting and diarrhoea; safety in pregnancy and breastfeeding is not established, so avoid medicinal doses.
External Ids
Botanical Description
Small, semi-parasitic annual herb (drawing some nutrients from the roots of neighbouring grasses) with tiny, opposite, toothed leaves and delicate, two-lipped white to pale lilac flowers marked with purple veins and a yellow throat spot, giving a bright, eye-like appearance that inspired both its common and Latin names.[11]
Tall, robust perennial herb with large, coarse, hairy leaves - broadly oval near the base and progressively smaller up the stem - arising from a thick, aromatic rhizome. Large, shaggy, bright yellow daisy-like flower heads with numerous narrow ray florets are borne at the top of stout, branching stems.[12]
Habitat
Grows in short, unimproved grassland, pastures, meadows and dunes on well-drained soils, always in association with grasses on which it partially parasitises; native to Europe.[11]
Grows in damp meadows, pastures, roadsides and woodland margins on moist, rich soils; native to Europe and Western Asia and naturalised in North America.[12]
Harvesting
The flowering aerial parts are cut in summer while in flower and dried in a warm, shaded, airy place.[11]
The root and rhizome are dug in autumn of the second or later year, when sesquiterpene lactone and inulin content is highest, then cleaned, sliced and dried.[12]
Traditional Uses
Elecampane root has a long European tradition, reflected in the old name 'elf dock', as a warming expectorant remedy for productive cough, bronchitis and chronic respiratory catarrh, and topically and internally as an antimicrobial for skin and wound infections.[12]
Preparations
Strained, cooled infusion applied as a compress over closed eyelids, or used (only when sterile, commercially prepared) as an eyewash for irritated or red eyes.
Commercially prepared, sterile Euphrasia eye drops used for conjunctivitis; a prospective clinical cohort found improvement in most users.
Dried root simmered in water as a traditional expectorant and antimicrobial tea.
Dosage
No dose is given here because no official posology exists. The HMPC assessed eyebright and DECLINED to establish a herbal monograph, concluding that the efficacy of the claimed uses is undocumented and that external eye application of ex tempore (home-prepared) preparations is 'not hygienic and not safe', so therapeutic use cannot be recommended. Traditional sources describe a strained, cooled infusion used as a compress, but that is precisely the practice the HMPC advised against; nothing home-prepared should be put in or on the eye. Educational reference only, not a prescription.
Not documented
References
Lookalikes Review
References & Sources
- Novy, P., Davidova, H., Serrano-Rojero, C.S., Rondevaldova, J. et al (2015) 'Composition and Antimicrobial Activity of Euphrasia rostkoviana Hayne Essential Oil', Evidence-Based Complementary and Alternative Medicine, 2015, pp. 734101. doi:10.1155/2015/734101 Preclinical
https://doi.org/10.1155/2015/734101 - D'Ambrosio, M., Ciocarlan, A. and Aricu, A (2020) 'Minor acetylated metabolites from Euphrasia rostkoviana', Natural Product Research, 34(2), pp. 290-295. doi:10.1080/14786419.2018.1530227 Preclinical
https://doi.org/10.1080/14786419.2018.1530227 - Ververis, A., Kyriakou, S., Paraskeva, H., Panayiotidis, M.I. et al (2024) 'Chemical Characterization and Assessment of the Neuroprotective Potential of Euphrasia officinalis', International Journal of Molecular Sciences, 25(23), pp. 12902. doi:10.3390/ijms252312902 Preclinical
https://doi.org/10.3390/ijms252312902 - Meier-Girard, D., Gerstenberg, G., Stoffel, L., Kohler, T., Klein, S.D., Eschenmoser, M., Mitter, V.R., Nelle, M. and Wolf, U (2020) 'Euphrasia eye drops in preterm neonates with ocular discharge: a randomized double-blind placebo-controlled trial', Frontiers in Pediatrics, 8, pp. 449. doi:10.3389/fped.2020.00449 Randomized trial
https://doi.org/10.3389/fped.2020.00449 - Liu, Y., Hwang, E., Ngo, H.T.T., Perumalsamy, H., Kim, Y.J., Li, L. and Yi, T.H (2018) 'Protective effects of Euphrasia officinalis extract against ultraviolet B-induced photoaging in normal human dermal fibroblasts', International Journal of Molecular Sciences, 19(11), pp. 3327. doi:10.3390/ijms19113327 Preclinical
https://doi.org/10.3390/ijms19113327 - Porchezhian, E., Ansari, S.H. and Shreedharan, N.K (2000) 'Antihyperglycemic activity of Euphrasia officinale leaves', Fitoterapia, 71(5), pp. 522-526. doi:10.1016/s0367-326x(00)00204-5 Preclinical
https://doi.org/10.1016/s0367-326x(00)00204-5 - Sticher, O. and Salama, O (1981) 'Iridoid glucosides from Euphrasia rostkoviana', Planta Medica, 42(6), pp. 122-123. doi:10.1055/s-2007-971584 Preclinical
https://doi.org/10.1055/s-2007-971584 - Lorenz, P., Knittel, D.N., Conrad, J., Lotter, E.M., Heilmann, J., Stintzing, F.C. and Kammerer, D.R (2016) '1-Acetyl-3-[(3R)-hydroxyfatty acyl]glycerols: lipid compounds from Euphrasia rostkoviana Hayne and E. tetraquetra (Breb.) Arrond', Chemistry & Biodiversity, 13(5), pp. 602-612. doi:10.1002/cbdv.201500233 Preclinical
https://doi.org/10.1002/cbdv.201500233 - Gawenda-Kempczynska, D., Olech, M., Balcerek, M., Nowak, R., Zaluski, T. and Zaluski, D (2022) 'Phenolic acids as chemotaxonomic markers able to differentiate the Euphrasia species', Phytochemistry, 203, pp. 113342. doi:10.1016/j.phytochem.2022.113342 Preclinical
https://doi.org/10.1016/j.phytochem.2022.113342 - Benedec, D., Oniga, I., Hanganu, D., Vlase, A.M., Ielciu, I., Crisan, G., Fit, N., Niculae, M., Bab, T., Pall, E. and Vlase, L (2024) 'Revealing the Phenolic Composition and the Antioxidant, Antimicrobial and Antiproliferative Activities of Two Euphrasia sp. Extracts', Plants, 13(13), pp. 1790. doi:10.3390/plants13131790 Preclinical
https://doi.org/10.3390/plants13131790 - Herbal Reality (n.d.) 'Eyebright (Euphrasia officinalis): Benefits, Uses, Safety'. Available at: https://www.herbalreality.com/herb/eyebright/ Traditional / reference
https://www.herbalreality.com/herb/eyebright/ - Paduch, R. and colleagues (2014) 'Assessment of Eyebright (Euphrasia officinalis L.) Extract Activity in Relation to Human Corneal Cells Using In Vitro Tests'. doi:10.5152/balkanmedj.2014.8377 Traditional / reference
https://doi.org/10.5152/balkanmedj.2014.8377 - Stoss, M., Michels, C., Peter, E., Beutke, R. and Gorter, R.W (2000) 'Prospective cohort trial of Euphrasia single-dose eye drops in conjunctivitis', Journal of Alternative and Complementary Medicine, 6(6), pp. 499--508. doi:10.1089/acm.2000.6.499 Clinical study
https://doi.org/10.1089/acm.2000.6.499 - European Medicines Agency (HMPC) (2010) 'Public statement on Euphrasia officinalis L. and Euphrasia rostkoviana Hayne, herba'. Available at: https://www.ema.europa.eu/en/documents/herbal-report/final-public-statement-euphrasia-officinalis-l-and-euphrasia-rostkoviana-hayne-herba_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-report/final-public-statement-euphrasia-officinalis-l-and-euphrasia-rostkoviana-hayne-herba_en.pdf
- Gierlikowska, B., Gierlikowski, W., Bekier, K., Skalicka-Wozniak, K., Czerwinska, M.E. and Kiss, A.K (2019) 'Inula helenium and Grindelia squarrosa as a source of compounds with anti-inflammatory activity in human neutrophils and cultured human respiratory epithelium', Journal of Ethnopharmacology, 249, pp. 112311. doi:10.1016/j.jep.2019.112311 Preclinical
https://doi.org/10.1016/j.jep.2019.112311 - Gao, S. and Wang, Q. and Tian, X.H. and Li, H.L. and Shen, Y.H. and Xu, X.K. and Wu, G.Z. and Hu, Z.L. and Zhang, W.D (2016) 'Total sesquiterpene lactones prepared from Inula helenium L. has potentials in prevention and therapy of rheumatoid arthritis', Journal of Ethnopharmacology, pp. 39--46. doi:10.1016/j.jep.2016.12.020 Preclinical
https://doi.org/10.1016/j.jep.2016.12.020 - Wang, Q., Gao, S., Wu, G., Yang, N., Zu, X., Li, W., Xie, N., Zhang, R., Li, C., Hu, Z. and Zhang, W (2018) 'Total sesquiterpene lactones isolated from Inula helenium L. attenuates 2,4-dinitrochlorobenzene-induced atopic dermatitis-like skin lesions in mice', Phytomedicine, 46, pp. 78-84. doi:10.1016/j.phymed.2018.04.036 Preclinical
https://doi.org/10.1016/j.phymed.2018.04.036 - Dao, T.T.P., Song, K., Kim, J.Y. and Kim, Y.S (2020) 'Igalan from Inula helenium (L.) suppresses the atopic dermatitis-like response in stimulated HaCaT keratinocytes via JAK/STAT3 signaling', Inflammation Research, 69(3), pp. 309-319. doi:10.1007/s00011-020-01322-4 Preclinical
https://doi.org/10.1007/s00011-020-01322-4 - He, X., Zhao, W., Shao, B., Zhang, B., Liu, T., Sun, C., Huang, H., Wu, J., Liang, J. and Ma, X (2020) 'Natural soluble epoxide hydrolase inhibitors from Inula helenium and their interactions with soluble epoxide hydrolase', International Journal of Biological Macromolecules, 161, pp. 1465-1474. doi:10.1016/j.ijbiomac.2020.04.227 Preclinical
https://doi.org/10.1016/j.ijbiomac.2020.04.227 - Buza, V., Niculae, M., Hanganu, D., Pall, E., Burtescu, R.F., Olah, N., Matei-Latiu, M., Vlasiuc, I., Iozon, I., Szakacs, A.R., Ielciu, I. and Stefanut, L.C (2022) 'Biological Activities and Chemical Profile of Gentiana asclepiadea and Inula helenium Ethanolic Extracts', Molecules, 27(11), pp. 3560. doi:10.3390/molecules27113560 Preclinical
https://doi.org/10.3390/molecules27113560 - Zheng, X., Wu, Z., Xu, J., Zhang, X., Tu, Y., Lei, J., Yuan, R., Cheng, H., Wang, Q. and Yu, J (2021) 'Bioactive sesquiterpenes from Inula helenium', Bioorganic Chemistry, 114, pp. 105066. doi:10.1016/j.bioorg.2021.105066 Preclinical
https://doi.org/10.1016/j.bioorg.2021.105066 - Nder, A.E (2021) 'Efficacy of methanol-water extract of Inula helenium root against oxidative DNA damage', Journal of Traditional Chinese Medicine, 41(2), pp. 293-300. Preclinical
https://scholar.google.com/scholar?q=Efficacy%20of%20methanol-water%20extract%20of%20Inula%20helenium%20root%20against%20oxidative%20DNA%20damage - Chun, J., Song, K. and Kim, Y.S (2018) 'Sesquiterpene lactones-enriched fraction of Inula helenium L. induces apoptosis through inhibition of signal transducers and activators of transcription 3 signaling pathway in MDA-MB-231 breast cancer cells', Phytotherapy Research, 32(12), pp. 2501-2509. doi:10.1002/ptr.6189 Preclinical
https://doi.org/10.1002/ptr.6189 - Li, Y., Ni, Z., Zhu, M., Dong, M., Wang, S., Shi, Q., Zhang, M., Wang, Y., Huo, C., Kiyota, H. and Cong, B (2012) 'Antitumour activities of sesquiterpene lactones from Inula helenium and Inula japonica', Zeitschrift fur Naturforschung C, 67(7-8), pp. 375-380. doi:10.1515/znc-2012-7-804 Preclinical
https://doi.org/10.1515/znc-2012-7-804 - Yan, Y.Y., Zhang, Q., Zhang, B., Yang, B. and Lin, N.M (2019) 'Active ingredients of Inula helenium L. exhibits similar anti-cancer effects as isoalantolactone in pancreatic cancer cells', Natural Product Research, 34(17), pp. 2539-2544. doi:10.1080/14786419.2018.1543676 Preclinical
https://doi.org/10.1080/14786419.2018.1543676 - Kenny, C.R., Stojakowska, A., Furey, A. and Lucey, B (2022) 'From Monographs to Chromatograms: The Antimicrobial Potential of Inula helenium L. (Elecampane) Naturalised in Ireland', Molecules. doi:10.3390/molecules27041406 Traditional / reference
https://doi.org/10.3390/molecules27041406 - Stojanovic-Radic, Z. and Comic, Lj. and Radulovic, N. and Blagojevic, P. and Denic, M. and Miltojevic, A. and Rajkovic, J. and Mihajilov-Krstev, T (2012) 'Antistaphylococcal activity of Inula helenium L. root essential oil: eudesmane sesquiterpene lactones induce cell membrane damage', European Journal of Clinical Microbiology & Infectious Diseases, 31(6), pp. 1015--1025. doi:10.1007/s10096-011-1400-1 Preclinical
https://doi.org/10.1007/s10096-011-1400-1 - Cantrell, C.L. and Abate, L. and Fronczek, F.R. and Franzblau, S.G. and Quijano, L. and Fischer, N.H (1999) 'Antimycobacterial eudesmanolides from Inula helenium and Rudbeckia subtomentosa', Planta Medica, 65(4), pp. 351--355. doi:10.1055/s-1999-14001 Preclinical
https://doi.org/10.1055/s-1999-14001
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.