A single-center, randomized, double-blind, dose-controlled clinical trial of Xiegan Qingxin Formula in the treatment of mild to moderate generalized anxiety disorder

INTERVENTION: Experimental Group:Standard dosage of Xiegan Qingxin Decoction granules.;Control Group:Low‐dose Xiegan Qingxin Decoction granules (Chinese herbal ingredients content at 10% of the experimental group); CONDITION: Generalized Anxiety Disorder PRIMARY OUTCOME: Hamilton Anxiety Scale Score; SECONDARY OUTCOME: Pittsburgh Sleep Quality Inde XScore;Clinical Global Impressions–Severity Scale Score;Clinical Global Impression‐Improvement Scale Score;Quality of Life (QOL) Score;TCM syndrome score;Sleep medications, types of anxiety medications, frequency of medication intake, dosage of medication; INCLUSION CRITERIA: (1) Meets the diagnostic criteria for generalized anxiety disorder according to DSM‐5 (Western medicine); (2) Meets the diagnostic criteria for liver meridian with hyperactive fire syndrome (Traditional Chinese Medicine); (3) Aged 18 to 70 years old (inclusive), with no restriction on gender; (4) HAMA score is between 14 and 29, with a score of at least 2 on item 1 (anxious mood); (5) Voluntarily participates in this clinical trial, can cooperate with the researchers, and signs the informed consent form.