Xiao Yao San
Overview
Xiao Yao San originated in the Song dynasty classic Taiping Huimin Hejiju Fang and is a traditional formula for soothing the Liver, relieving constraint, strengthening the Spleen, and nourishing the Blood.

Formula Composition
Common ingredients include Chai Hu, Dang Gui, Bai Shao, Bai Zhu, Fu Ling, Zhi Gan Cao, Bo He, and Wei Jiang, among others.
Note: The specific ingredient proportions may vary among different sources and dosage forms; refer to the actual product instructions.
Traditional Actions and Indications
Traditionally used for low mood or a tendency toward irritability, chest and hypochondriac distension and oppression, poor appetite, fatigue, and other discomforts associated with the menstrual cycle in patterns involving Liver constraint with Spleen deficiency and Blood deficiency. Modern applications generally focus on pattern differentiation and management of emotion-, digestion-, and menstruation-related symptoms.
Precautions
- Persistent depression, anxiety, insomnia, or menstrual abnormalities should first receive professional evaluation.
- Pregnant women and women who are planning pregnancy or breastfeeding should consult a physician or professional Chinese medicine practitioner before use.
- Those taking anticoagulants, hormonal medications, or psychiatric medications should first confirm potential interactions.
- Seek medical attention promptly if symptoms continue to worsen, abnormal bleeding occurs, or significant abdominal pain develops.
