It is a natural stimulant, without any side effects and positive reactions. It is used in the treatment of bronchial asthma, hypotension, collapse and shock during operation and anesthesia, postural hypotension, etc., and is widely used in medicine, food, beverage and other health care industries. Foreign studies have found that synephrine not only has the effects of pressor and anti shock, but also has the following effects: improving metabolism, increasing heat consumption, improving energy level, oxidizing fat and reducing weight. Therefore, zhangamine hydrochloride is commonly used as an effective component in weight-loss drugs, and has the advantages of high purity, stable property and easy preservation, which makes it more widely used.