Horsetail By Hawaii Pharm Overview & Drug Interactions

Horsetail, also known as equisetum, is a type of perennial herb that belongs to the Equisetaceae family. It is native to much of the Northern Hemisphere and has distinctive, jointed stems that resemble the tail of a horse, hence common name. Some species of horsetail are used medicinally and have been traditionally used to treat a range of ailments, including kidney and bladder problems, wounds, and hair loss. It is most commonly used in traditional medicine as an oral diuretic (i.e., water pill) for the treatment of edema. It is important to note that some species of horsetail (e.g., Equisetum palustre) may be toxic and should not be consumed. Additionally, some types of horsetail contain thiaminase, which can cause thiamine deficiency with prolonged use.