This product is the rhizome of the perennial herbaceous plant Cyperus (Cyperus rotundus L.) of the Cyperaceae family. It is produced in most regions of the country, mainly in Guangdong, Henan, Sichuan, Zhejiang, and Shandong. It is harvested in autumn, the fibrous roots are removed, and it is then dried in the sun. It is used raw or processed with vinegar. It is crushed before use.

bubble_chart Properties and Meridians

Acrid, slightly bitter and slightly sweet, neutral. Act on liver, spleen and triple energizer channels.

bubble_chart Efficacy

Soothing the liver and regulating qi, regulating menstruation and relieving pain.

bubble_chart Indications

1. is used for qi stagnation hypochondriac pain and abdominal pain. This product is pungent and can promote circulation, bitter and can disperse stagnation, slightly sweet and can alleviate urgency, making it an essential medicine for soothing the liver and relieving depression, moving qi to relieve pain. It is used to treat hypochondriac region distending pain due to liver qi depression, often combined with Bupleurum, Sichuan Lovage Rhizome, Submature Bitter Orange, etc., such as Bupleurum Liver-Soothing Powder. For stomach pain due to congealing cold and qi stagnation, liver qi invading the stomach, it can be paired with Lesser Galangal Rhizome, adding Lesser Galangal and Cyperus Pill. For cold abdominal colic and abdominal pain, it is often combined with Fennel, Lindera, Evodia Fruit, etc.
2. is used for liver depression menstrual irregularities, dysmenorrhea, and breast distending pain. This product has the effects of soothing the liver and relieving depression, regulating qi and resolving stuffiness, and regulating menstruation to relieve pain. For menstrual irregularities and dysmenorrhea, it is often combined with Bupleurum, Sichuan Lovage Rhizome, Chinese Angelica, etc. For breast distending pain, it is often combined with Bupleurum, green tangerine peel, Trichosanthis Fruit peel, etc.

bubble_chart Documentation

1. Bencao Gangmu: "Benefits the triple energizer, resolves six stagnations, eliminates food accumulation and phlegm-fluid retention causing stuffiness and fullness, relieves swelling, abdominal distension and fullness, treats beriberi, and alleviates pain in the heart, abdomen, limbs, head, eyes, teeth, and ears... For women, it addresses menorrhagia, metrostaxis, leukorrhea, irregular menstruation, and various diseases before and after childbirth." "It is the commander of qi disorders and the leader of gynecology."

bubble_chart Usage and Dosage

Decoct and take 6-12g. Vinegar-frying enhances the pain-relieving effect.

bubble_chart Modern Pharmacology

This product contains volatile oil. The main components in the oil are β-pinene, cyperene, α-cyperone, β-cyperone, α-cyperol, and β-cyperol. Additionally, it contains alkaloids, flavonoids, and triterpenoids. A 5% Cyperus extract inhibits the isolated uterus of experimental animals, reducing its contraction force and tension. Its volatile oil exhibits grade I estrogen-like effects. Its water decoction reduces intestinal tension and antagonizes acetylcholine. Cyperus oil inhibits Staphylococcus aureus. Its extract inhibits certain fungi. The aqueous solution of its total alkaloids, glycosides, flavonoids, and phenolic compounds has cardiotonic and hypotensive effects.