Secoiridoids (bitter principles: gentiopicrin, centapicrin, sweitiamarin, gentioflavoside), Alkaloids (gentianine, gentianidine, gentioflavine), Phenolic acids, Triterpenes, Xanthone derivatives, phenolic acids, nicotinic acid compounds, traces of essential oil, oleanolic acid, triterpenes (beta-sitosterol, campesterol, brassicsterol, stigmasterol)
The entire plant may be used.
Infusion: Infuse 1 tsp of dried herb in 1 cup of boiling water for 5-10 minutes, and drink ½ cup before meals. Tincture: Take 1-2 ml of the tincture three times per day.
Centaury has an interesting history of uses, and according to legend was named because of the mythical centaur Chironia who cured a poison arrow wound with the herb. Because it is so bitter, the ancient Romans called it the 'bile of the earth' (fel terraae.)