Medications for constipation need to be applied under the direction of a doctor after the cause of constipation has been clarified. Common drugs include lactulose solution, mosapride, etc. If there are intestinal masses, intestinal obstruction, etc., relying solely on drugs may not be very useful. Constipation can be divided into functional constipation and organic constipation. 1. Functional constipation: Lactulose solution, polyethylene glycol dispersions and other laxatives can be chosen, as well as mosapride, itopride and other gastrointestinal tract power agents. 2. Organic constipation: such as ulcerative colitis can be given mesalazine, methylprednisolone and other drugs; such as intestinal masses, intestinal obstruction often need surgical treatment. For the treatment of constipation, it is recommended to give corresponding treatment after consulting the doctor to clarify the cause. Medications should be administered under the guidance of a doctor.