The flowers and leaves of the common
St. John's wort are filled with glands that produce a red pigment called hypericin. Although commonly used as a dietary supplement and for medicinal purposes, and therefore considered to be safe at appropriate dosages, those who consume too much of the
plant may experience side effects. These include sensitivity to sunlight, anxiety, dizziness, headache, fatigue, and gastrointestinal irritations. The
plant is also known for having the ability to interfere with certain medications, rendering them much weaker. Those who are on antidepressants, birth control, and cancer medication, among many others, should avoid consumption of this
plant - medical advice should always be sought if you are considering taking the
plant as a dietary supplement. Although safe when consumed in appropriate doses, those who mix the common
St. John's wort with other medications are at risk of poisoning symptoms. In addition to its effects when consumed, the common
St. John's wort can also cause topical irritations when it comes into contact with the skin. Some people may experience allergic reactions, rashes, and inflammation.
