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| Inclusion criteria |
| (1) Patients who meet the Rome III diagnosis standard of functional dyspepsia. |
| (2) Patients who have cold and heat in complexity syndrome. |
| (3) Patients aged 18 to 65 without gender limitation. |
| (4) Singed the informed consent. |
| Exclusion criteria |
| (1) Patients who combined with GI ulcer, erosive gastritis, atrophic gastritis, severe dysplasia of gastric mucosa, or suspicious |
| malignant lesion. |
| (2) Patients who have overlap syndrome combined with gastroesophageal reflux disease or irritable bowel syndrome. |
| (3) Patients whose syndrome is difficult to differentiate. |
| (4) Patients who have connective tissue diseases, diabetes or other endocrine disease, climacteric syndrome, or severe diseases in heart, |
| liver, lung, kidney, or blood. |
| (5) Pregnant or lactating women. Disabled people. |
| (6) Patients with history of alcoholic or drug abuse. |
| (7) Patients who have allergic constitution or known to be allergic to the drug used in this trial. |
| (8) Patients who are involved in other trials. |
| (9) Patients with poor compliance or other reasons that the researcher considered not to be appropriate to participate in this trial. |
| (10) Patients with severe depression and have suicidal tendency. |
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