The efficacy of Poria cocos is to tranquilize the heart and tranquilize the mind, diuresis and elimination of edema (to pass urine and eliminate edema), and the main treatment of palpitations (rapid heartbeat, often accompanied by panic) dizziness, insomnia and forgetfulness, phlegm (pathological products formed by the impaired metabolism of water and fluid) edema, and so on. Poria is the white part of the fungus nucleus of Poria cocos with pine roots caught in it, Poriaceae, family Polyporaceae, lying hole genus. It is sweet, flat and light in nature, and enters the heart meridian and spleen meridian. There are many prescriptions containing Poria, such as: Poria Pill, for the treatment of insomnia with deficiency of yin and blood, with caution for pregnant women; Pachypodol Soup, for the treatment of excessive menstruation or menstrual bleeding with loss of nourishment of the heart and kidneys. Fu Shen is used internally, or in pills or powder. The adverse reactions of this product are not clear. When using the medicine, caution should be exercised in cases of kidney deficiency with dysuria (irregular urination) or intolerance of deficiency cold, and in cases of slippery semen. Patients are advised to seek prompt medical attention if they feel unwell, so as to avoid delays.