common name | Pyrrosia Leaf Shi Wei |
bubble_chart Source This product is the leaf of Pyrrosia Leaf or stalked Pyrrosia Leaf, a perennial evergreen herb of the Japanese polypody rhizome family, commonly found in the wild. It is mainly produced in Zhejiang, Hubei, Hebei, and other regions. It can be harvested throughout the year, with the rhizomes removed and dried in the sun. It is used fresh after being chopped.
bubble_chart Properties and Meridians
Bitter and sweet, slightly cold. Act on lung and bladder meridians.
bubble_chart Efficacy
Promoting diuresis and relieving stranguria, clearing the lungs and stopping cough.
bubble_chart Indications
- Used for heat stranguria. It is a common medicine for clearing heat, promoting diuresis, and relieving strangury. For treating ischuria and dribbling, it is often used with Plantain Seed, Talc, Lilac Pink Herb, etc., such as in Pyrrosia Leaf Powder. This product also has the function of cooling blood and stopping bleeding, making it particularly suitable for treating blood stranguria with astringent pain. It is often used with lalang grass rhizome, Typha, Small Thistle, etc., to achieve the effect of cooling blood and relieving strangury.
- Used for lung heat cough and panting. This product can clear lung heat, relieve cough, and calm panting. It is ground into powder with Pyrrosia Leaf and Areca Seed in equal parts and taken with ginger decoction, such as in Pyrrosia Leaf Powder.
- In addition, this product is cold in nature and can enter the blood aspect to cool blood and stop bleeding. Therefore, it can also be used for blood heat syndromes.
bubble_chart Documentation
- Benjing: "Relieves pathogenic heat, treats five types of ischuria, promotes urination and water passage."
- Rihuazi Bencao: "Treats dribbling urination and enuresis."
- Bencao Gangmu: "Treats menorrhagia and metrostaxis, incised wounds, and clears lung qi."
bubble_chart Usage and Dosage
5-10 grams. Decoct and take orally.
bubble_chart Modern Pharmacology
This product contains saponins, anthraquinones, flavonoids, tannins, etc. Its decoction has varying degrees of inhibitory effects on Staphylococcus aureus, Proteus, and Escherichia coli.
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