Compounded pepsin is a digestive aid, which is a compound preparation whose main ingredients include pepsin. This type of medication is mainly used for children who have accumulated food and can be supplemented when they have symptoms such as bloating and diarrhea after eating. Compound pepsin is only a supplement for digestive enzymes. When children have indigestive diarrhea, it is better to combine it with intestinal probiotics such as Mamma’s or Gold Diflucan to regulate it, which will be more effective. If the patient has diarrhea symptoms when the symptoms are severe, they can also be treated with montelukast to stop the diarrhea. It should also be noted that montelukast should be used more than two hours apart from the above two drugs.