Drinking mulberry leaves in water is helpful in lowering blood pressure within the scope of indications. But mulberry leaves in water is difficult to release its full efficacy, generally does not achieve the efficacy of the treatment of disease. Mulberry leaf is a traditional Chinese medicine, for the mulberry plant mulberry dry leaves, with the evacuation of wind-heat, clearing the lungs and moisturizing dryness, suppressing liver yang, clearing the liver and brightening the eyes (clearing the liver fire to promote the recovery of eyesight) efficacy. It is used for wind-heat cold, lung-heat dry cough, dizziness and headache, and redness and blurred vision. Its adverse reactions and precautions are not yet clear. From the efficacy and action of this product, this product has the effect of calming the liver yang, mulberry leaves in water for drinking for the liver yang on the hyperactivity (liver yang bias, causing dizziness, dizziness, headache and other symptoms) evidence type of hypertension, there is a certain degree of blood pressure lowering effect. However, it should be noted that this product does not have a complete cure for hypertension. It is difficult to achieve the therapeutic efficacy of herbal infusion. If high blood pressure occurs, hospital consultation should be made in time for active treatment. The above medicines should be used in a standardized manner under the guidance of a Chinese medicine practitioner to avoid delaying the condition.