Efficacy and role of Sophora japonica extract: 1. For the treatment of chronic bronchitis, it has anti-inflammatory effect, vitamin P-like effect, has the effect of maintaining vascular co-resistance, reducing its permeability, reducing brittleness, etc. It has a fat-removing effect on fat-infiltrated liver, antiviral effect and aldehyde inhibition The role of sugar reductase. 2. Attending to reduce blood lipids and cholesterol, used to prevent cerebral hemorrhage, hypertension, retinal hemorrhage, purple scar and acute hemorrhagic nephritis.