The main components of pearl powder are protein (hydrolyzed to obtain 18 amino acids, of which 7 are essential amino acids), calcium carbonate of aragonite structure, more than 20 kinds of trace elements and vitamin B. The ancient Chinese “Famous Medical Doctor”, “Collection of Materia Medica”, “Compendium of Materia Medica” and other 19 kinds of ancient medical books and the current pharmacopoeia have clear records of the healing effect of pearls – -Pearl powder has the effect of calming the mind and calming the panic, brightening the eyes and eliminating the cataract, detoxifying the muscle, used for palpitation and insomnia, epilepsy, eye cataract, sores and ulcers do not converge. Pearl powder can be taken internally, but also can be used externally in appropriate amounts. The side effects (adverse reactions) of pearl powder are not clear. However, for safety reasons, when the product’s properties change, prohibit the use of allergic to this product and pregnant women are prohibited; allergic people caution, children must be used under adult supervision, and need to put the pearl powder out of reach of children. In addition to the clinical use of the drug also need to pay attention to the following matters: 1. avoid smoking, alcohol and spicy, greasy food. 2. take the drug during the period to maintain emotional optimism, avoid anger and irritation. 3. have high blood pressure, heart disease, diabetes, liver disease, kidney disease and other serious chronic diseases and the elderly and infirm should be taken under the guidance of a physician. 4. take the drug for 7 days without relief of symptoms, should go to the hospital for medical consultation.