Sophora japonica contains better pollen nutrients. It has the effects of clearing away heat and cooling blood, clearing liver-fire and stopping bleeding. It contains rutin, quercetin, sophoridiol, vitamin A and other substances. Rutin can improve the function of capillaries, maintain the normal resistance of capillaries, and prevent bleeding, hypertension and diabetes caused by excessive fragility and permeability of capillaries. Sophora japonica has anti-inflammatory, edema-relieving, anti-ulcer, blood pressure lowering, arteriosclerosis preventing and antibacterial effects. Traditional Chinese medicine believes that it is bitter in taste and cool in nature, which can clear away heat, cool blood, stop bleeding and prevent stroke.