Objective To study the efficacy of fluoxetine for the patients with persist somatoform pain disorder and the relationship between the efficacy of fluoxetine and serotonin 2A (5 HT 2A ) receptor gene T102C polymorphism Methods Sixty two patients who met with ICD 10 criteria for persist somatoform pain disorder (F45 4) were treated with fluoxetine (20 mg/day) for 6 weeks The Medical Outcome Study Pain Measures (MOSPM) and Hamilton Depression Scale (HAMD) 17 items were used to assess the therap...