Patients with gastroenteritis can be treated with oral omeprazole enteric capsules. Omeprazole is mainly used for patients with gastritis to relieve epigastric pain, epigastric distention, acid reflux, nausea, vomiting and other discomfort symptoms. However, the diarrhea that occurs in patients with gastroenteritis needs to be treated with a combination of probiotics, such as Clostridium Typhimurium Live tablets or Bacillus subtilis Live capsules that can be taken orally. Patients are advised to consult their clinical pharmacist for the usage and dosage of the above mentioned drugs. If patients with gastroenteritis have heart disease or are currently using drugs for heart treatment, they need to choose omeprazole carefully and it is better to switch to other proton pump inhibitors, such as lansoprazole and rabeprazole, etc. They can consult their gastroenterologist for details.