Inclusion Criteria:

• Patients between 18 and 75 years old
• Patients with at least one of the following symptoms: upper abdominal pain, bloating, loss of appetite, acid reflux or constipation
• Patients already taking Danning Tablets as part of their regular medicine treatment for dyspepsia
• Patients agree to sign the informed consent form

Exclusion Criteria:

• Past history or comorbidity of malignant tumor
• Comorbidity of severe systemic condition including cardiovascular, cerebrovascular, renal and hematopoietic system diseases
• Past history of abdominal surgery (post pancreatic surgery, post subtotal gastrectomy; incomplete intestinal obstruction) or mental illness, mobility difficulty (e.g. long-term bed ridden)
• Comorbidity of any unstable chronic or acute disease,which may impact the evaluation of treatment efficacy as determined by the research physician
• Pregnancy or breastfeeding
• Participation in other clinical trials within the past 3 months
• Other circumstances determined as ineligible by the research physician