Commonly used laxative drugs include lubricating drugs, osmotic laxatives and stimulating laxatives. 1. Lubricating drugs: the representative drugs are Keserol, sesame oil, liquid paraffin, etc. The main function is to lubricate the intestinal wall, soften the stool, so as to promote the discharge of stool. 2. Osmotic laxatives: representative drugs are lactulose, polyethylene glycol, etc. The main effect is to increase the osmotic pressure in the intestinal tract, reduce the reabsorption of water in the intestinal tract, soften the stools, and facilitate the discharge of stools. The efficacy is obvious, and relatively safe, applicable to a wide range of people. 3. Stimulant laxatives: the representative drugs are Ma Ren soft capsule, compound aloe vera capsule, etc. These drugs have a certain degree of stimulation, long-term use may lead to colorectal melanosis, so it is not recommended to use frequently for a long time. In short, the above drugs should be used under the guidance of a doctor, the dosage should follow the doctor’s instructions, the emergence of adverse reactions to communicate with the doctor in a timely manner, in order to avoid the emergence of serious consequences.