Peppermint is traditionally used for its digestive, antispasmodic, anti-nausea and anti-pruriginous properties. Interestingly, Peppermint is a tonic at high doses and a sedative at low doses.
The dried leaves are traditionally used against diarrhoea, intestinal flora disorders, infections, diabetes and circulatory disorders. They contain tannins, juglone, flavonoids, phenol acids and a small quantity of essential oil.