10 Possible Side Effects Of Euphrasia Officinalis (Eyebright)

Euphrasia officinalis has some side effects when used improperly, such as dryness and irritation of the eyes, skin rashes, and digestive issues.

These side effects can occur due to excessive use or sensitivity to the herb's alkaloids.

For example, excessive use of eyebright can lead to chronic eye irritation, causing blurred vision and discomfort, potentially impacting a person's daily activities, work, and social life.

This article explains in details the 10 most common side effects of Euphrasia officinalis if used imporperly.

1. Increases risk of bleeding

Euphrasia officinalis irritates skin appearing in some individuals due to its strong and pungent properties.

The herb's active compounds, such as volatile oils and flavonoids, can cause allergic reactions or sensitivities on the skin, leading to redness, itching, and inflammation. This reaction may be triggered by direct contact with the eyes, nose, or mouth, or from internal use of eyebright in medicinal preparations.

As a result, some people may experience skin irritation when using Euphrasia officinalis, making it essential to understand its potential effects on the skin before introducing it into their regimen.

2. Increases risk of bleeding

Euphrasia officinalis causes allergic reactions in some individuals due to the presence of bioactive compounds such as flavonoids and terpenes.

These compounds can trigger an immune response, leading to symptoms like hives, itching, and swelling.

Additionally, the plant's volatile oils may cause respiratory issues, including coughing, sneezing, and congestion, which can further exacerbate allergic reactions.

3. Increases risk of bleeding

Euphrasia officinalis produces stomach upset due to its bitter and astringent properties.

The herb's bitter compounds can stimulate digestion, leading to increased gastric acid production and potentially causing stomach discomfort.

Additionally, the astringent properties of Euphrasia officinalis may reduce the natural mucus lining in the digestive tract, further contributing to stomach upset and irritability.

4. Increases risk of bleeding

Euphrasia officinalis induces vomiting repeatedly due to its intense stimulant properties that can irritate the digestive system.

Its bitter and aromatic compounds can stimulate the secretion of stomach acids, leading to nausea and vomiting in some individuals.

Additionally, eyebright's ability to increase saliva production may contribute to this side effect by overwhelming the body's ability to digest food properly, ultimately resulting in repeated vomiting episodes.

5. Increases risk of bleeding

Euphrasia officinalis triggers diarrhea frequently due to its ability to stimulate the digestive system and increase the production of stomach acid.

As a result, it can cause an imbalance in the gut microbiome, leading to loose stools or diarrhea in some individuals.

Additionally, the herb's anti-inflammatory properties may irritate the intestinal lining, further contributing to this side effect.

6. Increases risk of bleeding

Euphrasia officinalis increases blood pressure rapidly.

This is due to its ability to stimulate the cardiovascular system and increase heart rate, which can lead to a rapid rise in blood pressure. The herb's vasoconstrictive properties also play a role, causing blood vessels to narrow and constrict, further contributing to the increase in blood pressure.

Additionally, eyebright's high concentration of alkaloids, such as euphrosin and aglucone, may also contribute to its hypertensive effects.

7. Increases risk of bleeding

Euphrasia officinalis slows down heart rate.

This side effect is attributed to the herb's ability to stimulate the vagus nerve, which regulates heart rate and rhythm. The compounds present in Euphrasia officinalis, such as iridoid glycosides, interact with the nervous system, leading to a decrease in heart rate.

As a result, individuals using Euphrasia officinalis may experience a slowed or decreased heart rate, although this effect is usually mild and temporary.

8. Increases risk of bleeding

Euphrasia officinalis interferes with digestion process by potentially disrupting the normal functioning of the digestive system.

This is because Euphrasia officinalis contains saponins and other compounds that can alter the gut flora and slow down digestion, leading to symptoms such as bloating, cramps, and altered bowel habits.

Additionally, its expectorant properties may also cause stomach upset and nausea in some individuals.

9. Increases risk of bleeding

Euphrasia officinalis enhances sensitivity to light.

This is due to its ability to stimulate the visual cortex and increase pupil size, allowing more light to enter the eye.

Additionally, the herb's potent antimicrobial properties can cause increased inflammation in some individuals, leading to photophobia or discomfort when exposed to bright lights.

10. Increases risk of bleeding

Euphrasia officinalis disrupts normal sleep patterns due to its stimulating properties that can interfere with the body's natural relaxation response.

The herb contains compounds such as alkaloids and glycosides that can increase alertness and energy levels, making it difficult for individuals to wind down and fall asleep at night.

This disruption in sleep patterns may lead to fatigue, irritability, and other related issues, which can negatively impact daily life and overall well-being.