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English name: Lycium barbarum root bark

Source: Root bark of Lycium barbarum, a dicotyledonous plant of Solanaceae.

Efficacy: cooling blood to stop bleeding, clearing away heat and steaming, clearing away lung heat, clearing away heat and nourishing yin, and clearing away heat and toxic materials.

Indications: Treating mental fatigue, hot flashes, night sweats, cough and asthma due to lung heat, vomiting blood, epistaxis, bloody stranguria, thirst quenching, hypertension, carbuncle and malignant sores.

Sexual taste: sweet, cold. ① Classic: "Bitter taste, cold." ② Don't record: "Great cold, non-toxic." 3 "Outline": "Sweet and light, cold."

Enter the lung, liver and kidney meridians. ① Herbal soup: "Foot is less yin, hand is less yang meridian." (2) Description of properties of Leigong gun products: "It enters the lung and kidney." ③ "Herbal Yan Hui": "Entering the Meridian of Foot Deficiency and Foot Jueyin."

Usage and dosage: orally taken: decocted, 3 ~ 5 yuan; I still took the pills and dispersed them. External use: take the decoction, wash it, grind it into powder, or apply it externally.

Avoid medication: people with spleen and stomach deficiency and cold should avoid taking it. ① Introduction to Medicine: "Avoid iron." ② Materia Medica: "Those who are exhausted by fire, have weak spleen and stomach, eat less and have diarrhea should be reduced." 3 "Materia Medica Zheng Zheng": "Don't use fake heat."

Compatibility of drugs: compatibility with peony bark can strengthen the efficacy of clearing heat and removing steam; Compatibility with Cynanchum atratum can penetrate evil and clear the interior, and strengthen the effect of relieving exterior syndrome due to deficiency heat; The use of mulberry bark has the functions of clearing away lung heat and not hurting yin, and protecting yin liquid does not love evil; Use floating wheat to nourish the heart and kidney, nourish yin and sweat; Using cogongrass rhizome can cool blood and stop bleeding.

Other names: Radix Lycii, Herba Hedyotidis Diffusae, Defoe, Di Jie (Classic), Radix Lycii, Radix Lycii (Notes on Materia Medica), Cortex Lycii (Theory of Medicinal Properties), Radix Lycii, Radix Astragali (Henan Manual of Traditional Chinese Medicine), Radix Lycii, and Cortex Lycii of Dog Milk (Chinese).

Name of prescription: bone skin and bone skin

Trade name: Lycium barbarum bark and Lycium barbarum root bark, especially those with long and thick meat and no wood heart.

Distribution of animal and plant resources: it is produced in most parts of the country.

Collection and storage of medicinal materials: digging in early spring or after autumn, washing the soil, peeling off the roots and drying in the sun.

Latin name: Lycium barbarum, the original plant of Lycium barbarum L.

Processing method: remove impurities and wood core, slightly wash, dry in the sun and cut into sections.

Textual research: From Materia Medica: "Bai was born in the valley in the middle of Sichuan and also found in the house in the river. The roots are yellow, filiform, slender, with yellow spots at the top, and do not bloom. The leaves were born in March and are four or five inches long. Mining in April, violence is in use; September in central Sichuan. There are many commodities in the pharmaceutical market. "

Identification of raw medicinal materials: the dried root bark is a short cylindrical or grooved roll with different sizes, generally 3 ~ 10 cm long, 0.6 ~ 1.5 cm wide and about 3 mm thick. The outer surface is grayish yellow or brownish yellow, rough, with mixed longitudinal cracks and easy to peel off. The inner surface is yellow and white, relatively flat, with thin longitudinal stripes. The quality is easily broken, easily broken, the section is uneven, the outer layer is brownish yellow, and the inner layer is grayish white. Slightly smelly, slightly sweet. It is best to be big and thick, without wood core and impurities. Microscopic identification: root bark cross section: deciduous layer is thick, with 2-3 cork tissue zones, the innermost cork layer is a complete annular zone, and the outermost cork layer is staggered; Rotten sieve tubes and ray cells can be seen. The phloem accounts for about half of the thickness of root bark, and the ray width is 1 (-2) rows of cells. The parenchyma cells contain starch granules, and some contain calcium oxalate sand crystals; The fibers are dispersed into single or several bundles; Occasionally see stone cells. Powder: beige. ① Calcium oxalate sand crystals are scattered everywhere, and some parenchyma cells are filled with sand crystals, forming a sand crystal capsule. ② Fibers are often connected with radiation cells. Shuttle or spindle, length1/kloc-0-230μ m, diameter 17-37 (-48) μ m, wall thickness 3- 1 1μ m, lignified or micro-lignified, with sparse inclined holes. (3) A single starch particle is round or oval with a diameter of 5-22 microns; Composite particles are composed of 2-8 parts. In addition, round, spindle or rectangular stone cells, cork cells and epithelial parenchyma cells are occasionally seen.

Chemical composition of traditional Chinese medicine: the root bark contains cinnamic acid, a large number of phenols and betaine. It has also been reported that betaine only exists in the leaves and fruits of Lycium barbarum, but not in the root bark. Roots also contain substances that inhibit thiamine activity, which can be relieved by cysteine and vitamin C. B- sitosterol, linoleic acid, linolenic acid and undecanoic acid were also found in the bark of Lycium barbarum. Lycium barbarum root bark contains betaine, sitosterol and vitamin b 1, also known as cinnamic acid.