This product is the rhizome of the perennial herb Polygonatum odoratum (Polygonatum odoratum (Mill.) Druce) from the Lily Bulb family. It is mainly produced in Hebei, Jiangsu, and other regions. It is harvested in autumn, washed, and dried until soft. It is then repeatedly kneaded and dried until there is no hard core, then fully dried. Alternatively, it can be steamed until translucent, kneaded, and then dried. It is used by cutting into thick slices or segments.

bubble_chart Properties and Meridians

Sweet, slightly cold. act on lung and stomach channels.

bubble_chart Efficacy

Nourishing yin and moistening dryness, promoting fluid production to quench thirst.

bubble_chart Indications

1. Used for dry cough with scanty phlegm due to yin deficiency and lung dryness. It can nourish yin and moisten the lung to treat dry cough. It is often used with Coastal Glehnia Root, Ophiopogon Tuber, Tendrilleaf Fritillary Bulb, etc.
2. Used for fluid damage due to febrile disease, vexing heat, thirst, and consumptive thirst. It can benefit the stomach and promote fluid production, and treat internal heat and consumptive thirst. For vexing heat and thirst due to fluid damage from febrile disease, it is often combined with Unprocessed Rehmannia Root, Ophiopogon Tuber, etc., such as in Stomach-Tonifying Decoction; for consumptive thirst, it can be used with Unprocessed Rehmannia Root, Snakegourd Root, etc.
3. In addition, it is used for yin deficiency with external contraction, nourishing yin without retaining pathogenic factors. For example, in treating yin deficiency with external contraction of wind-heat, Modified Fragrant Solomonseal Decoction is used, which combines it with Mentha, Fistular Onion Stalk, Fermented Soybean, etc.

bubble_chart Documentation

1. Bencaozheng Yi: "Polyghace Seche, sweet in taste and rich in fat, is a soft and moist product. ... Now it is only used to treat lung and stomach dryness-heat, body fluids depletion, thirst and dry throat, etc., and it is particularly effective for intense stomach fire, dry thirst, rapid digestion, and frequent hunger."

bubble_chart Usage and Dosage

Decoct and take 10-15g.

bubble_chart Modern Pharmacology

This product contains convallatoxin, convalloside, convallamarin, daimyo oak bark glycosides, vitamin A, mucilage, etc. It has cardiotonic and hypertensive effects; when used in combination with Tangshen, it can improve myocardial ischemia; it has corticosteroid-like effects; and it also has lipid-lowering and hypoglycemic effects.