If you are constipated after taking Montelukast, it is recommended that you stop taking Montelukast, and your symptoms will usually be relieved more quickly. The main ingredient of Montelukast is montmorillonite, which is generally used for acute and chronic diarrhea in adults and children. Occasionally, constipation and dry stools can be seen. If constipation is caused by taking montelukast, it is generally recommended to stop using montelukast first, and the symptoms will be relieved to some extent within a short period of time after discontinuing the use of montelukast. If the desired effect is not achieved, you can increase the amount of exercise, drink more water, you can also eat some bananas, dragon fruit and so on, the symptoms will usually be relieved, if necessary, the use of laxative drugs such as lactulose and other treatments. If there are obvious symptoms of discomfort, you need to go to the hospital as soon as possible, with the doctor to give the appropriate treatment and treatment, not blindly use drugs to avoid adverse consequences.