Frequently asked questions

What is Xiao Yao San used for?

Traditionally: the pattern of liver qi constraint — stress and irritability, premenstrual symptoms, irregular cycles, fatigue with digestive unease. See benefits and evidence for what modern research has examined.

What's the difference between Xiao Yao San and Xiao Yao Wan?

Preparation, not recipe. San is the powder form, wan the pills — the same eight herbs. Full answer here.

And Jia Wei Xiao Yao San?

The augmented variant: the base formula plus moutan bark and gardenia, chosen when the same pattern shows heat signs — hot flashes, restless sleep, a hotter temper. Full comparison here.

How long does it take to work?

Practitioners typically review after two to four weeks. It is not an as-needed remedy taken for acute relief.

Can I take it with antidepressants or other medication?

Not without professional advice. The clearest interaction risk involves licorice and blood-pressure or potassium- affecting drugs, and herb–antidepressant combinations should always be supervised. Details on the safety page.

Is it safe in pregnancy?

Self-prescription in pregnancy is a hard no; any use in pregnancy belongs with a qualified practitioner and prescriber aware of each other.

Why do some products smell minty?

Because the formula ends with bò he — Chinese field mint, one of the two aromatics classically added at the end of preparation.