Clinical Trial of Shugan Jieyu Capsule in Generalized Anxiety Disorder

Inclusion Criteria: 1. Primary diagnosis of generalized anxiety disorder (GAD) as per Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) as confirmed by the MINI at Screening, The duration of illness must be ≥ 6 months； 2. Age 18-65 years old； 3. Hamilton Anxiety Rating Scale (HAM-A) Total Score of ≥ 14 at both Screening and Baseline，Anxious Mood (item 1) score ≥2； 4. Clinical Global Impression of Severity Scale (CGI-S) score of ≥ 3 at both Screening and Baseline 5. The TCM syndrome is liver Qi stagnation and spleen deficiency syndrome. Exclusion Criteria: 1. Diagnosed with a psychiatric disorder other than GAD that meets DSM-5 criteria within 6 months prior to screening； 2. Alcohol or drug abuse or dependence in the 6 months prior to screening, or urine positive for multiple drugs combined at screening 3. Hamilton Depression Rating Scale (HAMD-17) Total Score of \> 17 at Screening or Baseline，or Depressive Mood (item 1) score ≥2； 4. Patients with Severe Insomnia.