After picking and drying Sophora japonica, soak it in boiling water and drink it as tea. Drinking it several times a day has a unique therapeutic effect on patients with hypertension. It should be reminded that those with deficiency of spleen and stomach or deficiency of yin without excess fire should use it with caution.

Clearing heat, cooling blood and stopping bleeding. Clearing away heat and lowering blood pressure, and treating intestinal wind, hematochezia, hemorrhoid, hematuria, bloody stranguria, metrorrhagia, epistaxis, red and white dysentery, wind-heat conjunctival congestion and carbuncle. Used to prevent stroke. It has strong functions of cooling blood, stopping bleeding, astringing, diminishing inflammation, relieving pain, lowering blood pressure and strengthening blood vessels.

Sophora japonica tea contains more rutin and higher contents of vitamin A and vitamin C. These components have obvious functions of softening blood vessels, reducing the permeability and brittleness of capillaries, enhancing the resistance of capillaries and preventing cerebrovascular rupture in patients with hypertension. In addition, the components in Sophora japonica tea also have the functions of dilating coronary vessels, improving myocardial circulation and lowering blood pressure.