Sophora bean is not poisonous. Sophora japonica is another name of Sophora japonica, which is a commonly used Chinese herbal medicine, the dried flowers, buds and mature fruits of Sophora japonica, a leguminous plant. Sophora alopecuroides is beaded, with a length of 1~6cm and a diameter of 0.6~lcm. The surface is yellow-green or yellow-brown, with rough shrinkage and yellow back seam side.

Fresh Sophora japonica beans need to be steamed and sun-dried nine times before they can be used as tea. Sophora japonica beans picked in spring can be used as tea after freeze-drying in winter. Drinking it several times a day has a unique therapeutic effect on patients with hypertension. At the same time, Sophora japonica also has the function of contracting blood vessels and stopping bleeding.