The role of glutamine is mainly used for the treatment of neurosis, premenstrual tension syndrome, menopausal syndrome, etc. Side effects are common gastrointestinal dysfunction, dry mouth, fatigue, breast swelling, hair loss, weight gain, and so on. 1. The role of glutamine: glutamine has the role of regulating autonomic dysfunction and regulating endocrine balance disorders. It is mainly used in the treatment of neurosis, premenstrual tension syndrome, menopausal syndrome sedation and sleep aid. 2. Side effects: patients may experience gastric upset, nausea, vomiting and other symptoms of gastrointestinal disorders, as well as dry mouth, fatigue, breast swelling, hair loss, weight gain and so on. When using Guvidin, it should be noted that patients with gastric and duodenal ulcers should be cautious; patients who are allergic to the product are prohibited; no relief during the use of the drug should be consulted in a timely manner. It is recommended that patients be treated under the guidance of a doctor’s visit.