What side effects does senna drink much to have

Senna leaf is cold medicine, but the disadvantage is that it will form habitual constipation when used all the time, so do not use it frequently, you can use it occasionally. Senna leaf is generally used as a laxative, when it is used in large quantities, it can be used to laxative, when it is used in small quantities, it can be used to laxative, generally it is directly soaked in water, it can be used to prevent constipation, or treat constipation.