What is the formula of Four-Substances Decoction? Detailed explanation of the preparation method of traditional Chinese medicine Four-Substances Decoction


Four-Substances Decoction, also known as Siwu Buxue Decoction, is a very classic TCM blood-tonifying prescription. It consists of four medicinal herbs, namely Angelicae Sinensis, White Peony Root, Ligusticum Chuanxiong and Rehmannia glutinosa. Each of these four medicinal materials has its own unique pharmacological effects, and together they can nourish blood, nourish the skin, regulate menstruation and relieve pain. Below, I will introduce the formula of Siwu Decoction and its usage in detail from the aspects of the properties, efficacy and applicable groups of medicinal materials.

1. Angelica sinensis: Angelica sinensis is a commonly used Chinese medicinal material, which has the effects of nourishing blood and activating blood circulation, regulating menstruation and relieving pain, and moisturizing the intestines and laxative. In Siwu Decoction, Angelica sinensis plays a major role in replenishing blood, which can improve anemia symptoms and improve women’s immunity.

2. White peony root: White peony root is a common Chinese medicinal material that has the functions of nourishing yin, softening the liver, relieving pain, and anti-inflammatory and analgesic effects. In Siwu Decoction, white peony root and angelica root together play the role of nourishing blood and nourishing the skin, and can also relieve headaches, dizziness and other symptoms caused by insufficient qi and blood.

3. Ligusticum Chuanxiong: Ligusticum Chuanxiong is a commonly used traditional Chinese medicine that has the functions of activating blood circulation and removing blood stasis, dispelling wind and relieving pain, and is anti-inflammatory and analgesic. In Siwu Decoction, Ligusticum Chuanxiong, together with Angelica sinensis and White Peony Root, play the role of regulating menstruation and relieving pain, and have a good effect on improving symptoms such as irregular menstruation and dysmenorrhea.

4. Rehmannia glutinosa: Rehmannia glutinosa is a common Chinese medicinal material, which has the functions of nourishing yin and kidney, nourishing blood and promoting body fluid, and anti-aging. In Siwu Decoction, Rehmannia glutinosa, angelica root, and white peony root play a role in nourishing blood and nourishing the skin, and can also improve symptoms such as dizziness and tinnitus caused by kidney yin deficiency.

The formula ratio of Siwu Decoction is: 15 grams of Angelica sinensis, 15 grams of white peony root, 10 grams of Chuanxiong, and 15 grams of Rehmannia glutinosa. Put these four medicinal materials into a casserole, add an appropriate amount of water, bring to a boil over high heat, then turn to low heat and simmer for about 40 minutes. Turn off the heat after the concoction is concentrated. Strain the concoction and take it twice, once in the morning and once in the evening.

Siwu Decoction is suitable for various symptoms caused by insufficient Qi and blood, such as anemia, irregular menstruation, dysmenorrhea, menopausal syndrome, etc. But it should be noted that Siwu Tang is not suitable for everyone. Pregnant women, menstruating women, cold and fever patients and other special groups should consult a professional doctor before use. In addition, although Siwu Decoction has certain health care effects, it cannot replace medicine in treating diseases. If you have a serious illness, you should seek medical treatment in time.

In short, Siwu Decoction is a very classic traditional Chinese medicine blood-tonifying prescription with high practical value. When using, the appropriate proportion of medicinal materials and usage method should be selected according to personal constitution and symptoms. At the same time, only by maintaining good living habits and dietary structure can the health-care effects of Siwu Decoction be better exerted.

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