This product is the root of the perennial deciduous vine plant of the legume family, wild kudzu (Pueraria lobata (Willd.) Ohwi) or sweet kudzu (Pueraria thomsonii Benth.). It is distributed throughout the north and south of mainland China. The roots are excavated in spring and autumn, sliced, and dried in the sun. They can be used raw or roasted.

bubble_chart Properties and Meridians

Sweet and acrid, cool. act on spleen and stomach channels.

bubble_chart Efficacy

Releasing flesh to reduce fever, promoting the eruption of measles, promoting fluid production to quench thirst, and raising yang to stop diarrhea.

bubble_chart Indications

1. Used for external contraction exterior pattern. This product is sweet and pungent in nature, cool in property, light and ascending, dispersing, enters the spleen and stomach meridians, and has the functions of inducing sweating to release the exterior, releasing flesh, and reducing fever. Therefore, it can be used to treat external contraction exterior pattern, where pathogenic heat is trapped, with severe fever, mild aversion to cold, headache, dry nose, slight thirst, and thin yellow tongue coating. It is often used in combination with Bupleurum, Skullcap Root, Dahurian Angelica, etc., such as Bupleurum and Pueraria Flesh-Releasing Decoction; if it is a pattern of common cold due to wind-cold, with symptoms such as aversion to cold without sweating, stiff neck and back pain, it is often combined with Ephedra, Cinnamon Twig, Peony Root, etc., such as Pueraria Decoction.
2. Used for measles that do not erupt. This product has the functions of releasing the exterior and dispersing pathogens, releasing flesh and reducing fever, and promoting the eruption of measles. Therefore, it can be used to treat the initial stage of measles, where the exterior pathogen is trapped, and the rash does not erupt smoothly. It is often used in combination with Cimicifuga Rhizome, Peony Root, Liquorice Root, etc., such as Cimicifuga and Pueraria Decoction; it can also be combined with Mentha, Great Burdock Achene, Schizonepeta, Cicada Slough, etc.
3. Used for Rebing thirst, yin deficiency consumptive thirst. This product is sweet and cool, and while clearing heat, it can also stimulate the rise of stomach qi, thus having the function of promoting fluid production to quench thirst. It is used to treat Rebing thirst due to fluid injury, often combined with Reed Rhizome, Snakegourd Root, Anemarrhena, etc.; if used to treat internal heat consumptive thirst, it is often combined with Smoked Plum, Snakegourd Root, Ophiopogon Tuber, Tangshen, Astragalus Root, etc., such as Jade Spring Pill.
4. Used for heat diarrhea and dysentery, diarrhea due to spleen deficiency. This product can both clear and expel pathogenic heat, and also raise clear yang, stimulating the rise of spleen and stomach clear yang to stop diarrhea and dysentery. Therefore, it can be used to treat heat diarrhea and dysentery where the exterior pattern is not resolved and pathogenic heat enters the interior. It is often combined with Skullcap Root, Coptis Rhizome, Liquorice Root, etc., such as Pueraria, Skullcap and Coptis Decoction; if it is diarrhea due to spleen deficiency, it is often combined with Tangshen, Poria, Liquorice Root, etc., such as Seven-Ingredient White Atractylodes Powder.

bubble_chart Documentation

1. Benjing: "Main consumptive thirst, body with high fever, vomiting, rising yin qi, resolving various toxins."
2. Bielu: "Treats cold-damage disease apoplexy headache, releasing the flesh and effusing the external, inducing sweating, opening striae and interstice." "The juice of the root treats consumptive thirst, cold-damage disease with high fever."
3. 《Medication Law Image》: "Its qi is light and floating, stimulating stomach qi to ascend, generating body fluids, and also releasing flesh heat, treating spleen-stomach weakness diarrhea."

bubble_chart Usage and Dosage

Decoct and take 10-15g. Use raw for reducing fever and promoting fluid production; use roasted for raising yang and stopping diarrhea.

bubble_chart Modern Pharmacology

This product mainly contains flavonoids: daidzein, daidzin, as well as daidzein-4,7-diglucoside, Pueraria Root extract, Pueraria Root extract-7-xyloside, Pueraria Root alcohol, Pueraria Root vine extract, isoflavone glycosides, and starch.

1. Pueraria Root can dilate coronary and cerebral blood vessels, increasing coronary and cerebral blood flow.
2. The total flavonoids in Pueraria Root can reduce myocardial oxygen consumption and increase oxygen supply.
3. Pueraria Root can directly dilate blood vessels, reducing peripheral resistance, and has a significant antihypertensive effect, effectively alleviating the "neck tightness" symptoms in hypertensive patients.
4. Pueraria Root extract can inhibit platelet aggregation.
5. Pueraria Root has a broad β-receptor blocking effect.
6. Daidzein has a significant antispasmodic effect on isolated mouse intestines and can counteract acetylcholine-induced intestinal spasms.
7. Pueraria Root also has a notable antipyretic effect.
8. And it has a mild hypoglycemic effect.

bubble_chart Supplementary Medicinals

Pueraria Flower: The unopened flower bud of Pueraria. It has a sweet and neutral taste. Its functions include effectively detoxifying alcohol, invigorating the spleen, and harmonizing the stomach. It is mainly used for symptoms such as excessive alcohol consumption, headache, dizziness, thirst, vomiting, and chest and diaphragm distension. The usual dosage is 3-15g.