Probiotic is a kind of bacteria that is beneficial to human gastrointestinal tract and is also a kind of live bacteria, which can be used to regulate the balance of intestinal flora and is mainly applied to treat acute and chronic enteritis or gastroenteritis. Because probiotics can regulate the intestinal flora disorder, it can be used to improve the symptoms of constipation and diarrhea caused by gastroenteritis. Gastrointestinal tablets mainly help digestion and belong to the category of stomachic and anti-eating drugs, which are mainly used for patients with symptoms of indigestion, such as accumulation of food or loss of appetite, bloating, regurgitation, regurgitation, etc. Therefore, the two have different effects. Patients can choose the medication according to their clinical symptoms, and it is best to use the medication under the guidance of a specialist.