- What other names is Eyebright known by?
- What is Eyebright?
- How does Eyebright work?
- Are there safety concerns?
- Are there any interactions with medications?
- Dosing considerations for Eyebright.
Aufraise, Augentrostkraut, Casse-Lunettes, Eufrasia, Euphraise, Euphraise Officinale, Euphraise de Rostkov, Euphrasia, Euphraisia Eye Bright, Euphrasia officinalis, Euphrasia rostkoviana, Euphrasia stricta, Euphrasiae Herba, Eye Bright, Herbe d'Euphraise, Luminet.
Eyebright is a plant. The parts that grow above the ground are used to make medicine.
Eyebright is taken by mouth to treat swollen (inflamed) nasal passages, allergies, hay fever, common cold, bronchial conditions, and inflamed sinuses (sinusitis). It is also used for cancer, coughs, “pink eye” (conjunctivitis), earaches, epilepsy, headaches, hoarseness, inflammation, jaundice, runny nose, skin ailments, and sore throat.
Despite serious risk of infection, some people apply eyebright directly to the eye in the form of a lotion, poultice, or eye bath to treat a variety of conditions including conjunctivitis; inflammation of the eyelids at the edge of the lashes (blepharitis); eye fatigue; inflammation of the blood vessels, eyelids and conjunctiva; and for "glued" and inflamed eyes. Eyebright is also applied to the eyes to prevent mucous and mucous membrane inflammation of the eyes.
In foods, eyebright is used as a flavoring ingredient.
Insufficient Evidence to Rate Effectiveness for...
- Pink eye (conjunctivitis). Early research suggests that applying one drop of eyebright eye drops (WALA Heilmittel GmbH, Eck-walkden/Bad Boll) up to five times per day for 2 weeks helps increase the rate of recovery from pink eye.
- Inflamed nasal passages.
- Inflamed sinuses (sinusitis).
- Other conditions.
The chemicals in eyebright might act as astringents and kill bacteria.
Eyebright is POSSIBLY SAFE for most people when taken by mouth. However, when used directly on the eye, eyebright is POSSIBLY UNSAFE and is not recommended. It can be contaminated and cause eye infections. Side effects of eyebright tincture include confusion, headache, tearing, itching, redness, vision problems, sneezing, nausea, toothache, constipation, cough, trouble breathing, trouble sleeping (insomnia), sweating, and others.
Special Precautions & Warnings:Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking eyebright if you are pregnant or breast-feeding. Stay on the safe side and avoid use.
Surgery: Eyebright might lower blood sugar in some people. In theory, eyebright might interfere with blood sugar control during and after surgical procedures. Stop using eyebright at least 2 weeks before a scheduled surgery.
Medications for diabetes (Antidiabetes drugs)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.
Eyebright might lower blood sugar in some people. Diabetes medications are also used to lower blood sugar. Taking eyebright with diabetes medications might cause your blood sugar to go too low. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Some medications for diabetes include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.
The appropriate dose of eyebright depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for eyebright. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
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Bartholomaeus A and Ahokas J. Inhibtion of P-450 by aucubin: is the biological activity of aucubin due to its glutaraldehyde-like aglycone? Toxicol Lett 1995;80(1-3):75-83.
Bermejo, Benito P., Diaz Lanza, A. M., Silvan Sen, A. M., De Santos, Galindez J., Fernandez, Matellano L., Sanz, Gomez A., and Abad Martinez, M. J. Effects of some iridoids from plant origin on arachidonic acid metabolism in cellular systems. Planta Med 2000;66(4):324-328. View abstract.
Chang I and Yamaura Y. Aucubin: a new antidote for poisonous amanita mushrooms. Phytother Res 1993;7:53-56.
Chang I. Antiviral activity of Aucubin against Hepatitis B virus replication. Phytother Res 1997;11(3):189-192.
Chang, I. M. Liver-protective activities of aucubin derived from traditional oriental medicine. Res Commun Mol Pathol Pharmacol 1998;102(2):189-204. View abstract.
Chang, I. M., Ryu, J. C., Park, Y. C., Yun, H. S., and Yang, K. H. Protective activities of aucubin against carbon tetrachloride-induced liver damage in mice. Drug Chem Toxicol. 1983;6(5):443-453. View abstract.
Ersoz, T., Berkman, M. Z., Tasdemir, D., Ireland, C. M., and Calis, I. An iridoid glucoside from Euphrasia pectinata. J Nat Prod 2000;63(10):1449-1450. View abstract.
Hattori M, Kawata Y, Inoue K, and et al. Transformation of aucubin to new pyridine monoterpene alkaloids, aucubinines A and B, by human intestinal bacteria. Phytother Res 1990;4(2):66-70.
Lee, D. H., Cho, I. G., Park, M. S., Kim, K. N., Chang, I. M., and Mar, W. Studies on the possible mechanisms of protective activity against alpha- amanitin poisoning by aucubin. Arch Pharm Res 2001;24(1):55-63. View abstract.
Mokkapatti R. An experimental double-blind study to evaluate the use of Euphrasia in preventing conjunctivitis. Brit Homoeopath J 1992;1(81):22-24.
Porchezhian, E., Ansari, S. H., and Shreedharan, N. K. Antihyperglycemic activity of Euphrasia officinale leaves. Fitoterapia 2000;71(5):522-526. View abstract.
Recio, M. C., Giner, R. M., Manez, S., and Rios, J. L. Structural considerations on the iridoids as anti-inflammatory agents. Planta Med 1994;60(3):232-234. View abstract.
Rombouts JE and Links J. The chemical nature of the antibacterial substance present in Aucuba japonica Thunbg. Experientia 1956;12(2):78-80.
Salama O and Sticher O. Iridoid glucosides from Euphrasia rostkoviana. Part 4. Glycosides from Euphrasia species. Planta Med 1983;47:90-94.
Stoss, M., Michels, C., Peter, E., Beutke, R., and Gorter, R. W. Prospective cohort trial of Euphrasia single-dose eye drops in conjunctivitis. J Altern.Complement Med 2000;6(6):499-508. View abstract.
Suh, N. J., Shim, C. K., Lee, M. H., Kim, S. K., and Chang, I. M. Pharmacokinetic study of an iridoid glucoside: aucubin. Pharm Res 1991;8(8):1059-1063. View abstract.
Teotia, S. and Singh, M. Hypoglycemic effect of Prunus amygdalus seeds in albino rabbits. Indian J Exp.Biol. 1997;35(3):295-296. View abstract.
Ulubelen, A., Topcu, G., Eris, C., Sonmez, U., Kartal, M., Kurucu, S., and Bozok-Johansson, C. Terpenoids from Salvia sclarea. Phytochemistry 1994;36(4):971-974. View abstract.