Effect of tadospirone citrate on symptom resolution of patients with functional dyspepsia - A double-blind placebo-controlled trial

INTERVENTION: Administration of anti‐anxiety drug )Tandospirone Citrate) 30mg/day for one month placebo CONDITION: Functional dyspepsia PRIMARY OUTCOME: symptom resolution (improvement) SECONDARY OUTCOME: imprvement of quality of eibe INCLUSION CRITERIA: FD patients who meet Rome II criteria 1. patients who had at least one symptom described below in one week preceding the study pain, discomfort of epigastrium, bloating, abdominal fullness, early satiety, nausea or vomiting, appetite loss, belching. 2. patients who had no organic lesions that were confirmed by upper GI endoscopy within 6 months. 3. patients who are older than 20 years at entry. 4. out patients. 5. patients who understand the study contents and give informed consents by themselves