What medication should children take for an upset stomach?

For diarrhea caused by indigestion, probiotics or Jianwei Xiaoshi tablets may be taken to regulate intestinal flora and promote digestion. For infectious diarrhea, such as bacterial or viral enteritis, antibiotics or antiviral medications are required, along with anti-diarrheal agents like montmorillonite powder. During medication, it is important to maintain adequate fluid and nutritional intake to prevent dehydration. If symptoms persist or worsen, prompt medical attention should be sought.