Constipation drugs are diverse, more common immediately effective drugs are divided into the following categories: 1, stool softeners, such as common polyethylene glycol 4000 or lactulose, etc., can make the stool thinner, softer and more conducive to discharge; 2, intestinal dynamics drugs, safer such as Prilocarpine drugs, can promote the peristaltic function of the intestines, to promote the discharge of feces in the direction of the anus; 3, lubricants The commonly used ones, such as edible paraffin oil, can play the role of lubrication and promote the excretion of stool; 4, some Chinese medicines are very effective for defecation, such as rhubarb, senna, aloe vera, etc. However, these drugs cannot be used for a long time, and long-term use has certain damage to the intestinal mucosa, so these drugs are called stimulant laxatives, which are rarely used at present. In general, safer laxatives, namely volumetric laxatives, intestinal motility drugs and intestinal lubricants, are recommended for the treatment of constipation.