If not wanting to eat is due to indigestion, you need to take drugs such as polypeptide tablets and mosapride; if it is due to hypothyroidism, you need to take levothyroxine; if it is due to anorexia nervosa, you need to take drugs such as fluoxetine and cisapride. 1. Dyspepsia: common symptoms include poor appetite, bloating and early satiety. Patients need to apply digestive enzyme preparations, such as multi-enzyme tablets, yeast tablets, etc., and gastrointestinal stimulants such as domperidone and mosapride. Some patients may need to apply proton pump inhibitors, such as omeprazole, rabeprazole and so on. 2. Hypothyroidism: the main symptoms include loss of appetite, emaciation, and chills. Patients need to take levothyroxine tablets under the guidance of a doctor. If anemia exists, iron supplements such as ferrous succinate, ferrous fumarate and vitamin B12 should be applied as prescribed by the doctor. 3. Anorexia nervosa: Typical symptoms are loss of interest in food, refusal to eat, and partiality. Patients need to follow the doctor’s instructions to apply fluoxetine, paroxetine, sertraline and other antidepressants, some patients need to follow the doctor’s instructions to apply cisapride, itopride and other drugs to promote gastrointestinal dynamics. There are many reasons why patients don’t want to eat, and they need to go to the hospital to get a clear understanding of the specific causes, and then apply medication according to the original cause to improve their symptoms.