The phenomenon of epileptic patients who have psychiatric disorders is very common, of which the prevalence of depression is the highest and depression is also an independent risk factor affecting epileptic patients' quality of life. Due to some social factors, non-typical clinical symptoms and limited therapeutic methods(tricyclic antidepressants, lithium chloride and 5-serotonin uptake inhibitors may all have risks of lowing threshold of seizures), epileptic patients with depression are usually not be recognized and treated properly. Wuling capsule has been used in therapy of insomnia, nervous breakdowns and a previous small sample clinical trial revealed that it could improve mood disorders of epileptic patients and hadn't affected severity of seizures (not published). Therefore a multi-center, randomized, double-blinded and placebo-controlled superiority clinical trial will be carried out to determine the effects of add-on therapy of wuling capsule on depressive symptoms in patients with epilepsy, to evaluate its influences on the frequency and severity of seizures, and to observe its effects on patients' sleeping condition, quality of life.
The main purpose of this study is to determine the effects of add-on therapy of wuling capsule on depressive symptoms in patients with comorbidity of epilepsy and depression, to evaluate its influences on the frequency and severity of seizures, and to observe its effects on patients' sleeping condition, quality of life.