Taste pungent, warm nature. Contains volatile oil. The main components in the oil are terpenes and sesquiterpene enol. Effects: Nourishing the kidney and fixing essence, shrinking urine, warming the spleen to stop diarrhea, and ingesting saliva. It is used for seminal emission, spermatorrhea, dysuria, dysuria, posturia, nocturia; diarrhea and abdominal pain, salivation of weak spleen yang. Usage: 3 to 10 grams of water decoction.

Duzhong: sweet and warm. Contains glucoside, alkaloids, pectin, resin and organic acid. It has the effect of lowering blood pressure, lowering cholesterol and sedative and analgesic, diuretic and so on. Effects: Nourishing the liver and kidney, strengthening the muscles and bones, and tranquilizing the fetus. It is used for kidney yang deficiency, liver and kidney deficiency of lumbar and knee pain, impotence, frequent urination and kidney deficiency, fetal restlessness. Usage: 10 to 15 grams of decoction, can also be soaked in wine to drink.