Four Substance Formula is available by Honso Kampo
In the prescription, shu di huang is the chief herb which nourishes both yin and blood. Dang gui is the deputy, which invigorates blood and liver, and regulates blood and menstruation. It assists with shao yao to nourish blood, soften the liver and regulate yin. Chuan xiong activates qi and regulates blood and qi circulation. Moreover, shu di huang and shao yao, which are yin and soften in nature, combine with dang gui and chuan xiong, which are acrid in taste and warm in nature, to invigorate blood without stagnating the blood. It is the characteristic of this formula. Four herbs together have the function of nourishing and regulating blood, and regulating yin and blood.
3 unit packets contain:
Angelica sinensis (Dang Gui)?4.0g
Peony Root (Shao yao)?4.0g
Cnidium Rhizome (Chuan xiong)?4.0g
Rehmannia Root (Shu di huang)?4.0g
The usual adult dose is 7.5g/day orally in 3 divided doses before or between meals. The dosage may be adjusted according to the patient's age, body weight, and symptoms.