Bupleurum & Tang Kuei Formula (Xiao Yao Wan), also known as “Free and Easy Wanderer” or “Rambling Powder,” is an important classical prescription for regulating and harmonizing the energy of the liver and spleen. It is useful for a diverse range of symptoms resulting from liver qi stagnation, deficient liver blood, and liver/spleen disharmony.
It is an excellent formula for menstrual and premenstrual disorders when strong signs of heat are not present.