Scientific name of Glycyrrhiza uralensis Fisch. G.glabra L. Alias: sweet grass root, red licorice root, pink licorice root, beautiful grass, dense grass, old country, pink grass, sweet grass, sweet root, Clam grass category: tonics in tonics (also known as tonics) English name: Licorice Roots Northwest Origin Latin name: Radix Glycyrrhiza Medicinal parts: roots and rhizomes Medicinal properties: Glycyrrhiza uralensis Fisch: roots are cylindrical, 25 ~ LOOCM long and 0.6 ~ 3.5 cm in diameter. The skin is not elastic. The surface is reddish brown or grayish brown, with obvious longitudinal wrinkles, furrows, lenticels and sparse fine root marks. Solid quality, slightly fibrous section, yellowish white, silty, obvious cambium ring, radial rays, and some cracks. The rhizome is cylindrical, with bud marks on the surface and pith in the middle of the section. Slight breath, sweet and special taste. Cultivation points: I like the dry climate with abundant sunshine, long sunshine and low temperature. Sandy loam with deep soil layer and good drainage should be selected for cultivation. Breeding with seeds or rhizomes, but breeding with rhizomes grows fast. Medicinal material characteristics Glycyrrhiza uralensis Fisch is a perennial herb in Leguminosae. In late autumn, the pods split, and the seeds walk on the land with the wind, naturally reproducing. The stem is straight and upright; Roots, such as cylinders, are three or four centimeters in diameter, five or six centimeters in size, more than one meter in length, and the longest is three or four meters. Growth conditions Glycyrrhiza uralensis Fisch grows mostly in arid and semi-arid desert grasslands, desert edges and loess hilly areas, and is also easy to breed in fields and floodplains in Yellow River irrigation areas. It has strong adaptability and stress resistance, and deserves to be an expert in drought resistance in the plant world and a pioneer in fighting sandstorms. Indications: invigorating spleen and qi, clearing away heat and toxic materials, eliminating phlegm and relieving cough, relieving pain, and harmonizing various drugs. It can be used for treating weakness of spleen and stomach, listlessness, palpitation, shortness of breath, cough with excessive phlegm, abdominal distension, acute pain of limbs, carbuncle, swelling and sore, and relieving drug toxicity. Usage and dosage: oral administration: decoction, 3 ~ 9g (large dose 30 ~ 60g). External use: appropriate amount, decocted and washed; Or grind and apply. Caution: It is not suitable to use licorice with Euphorbia, Daphne genkwa, Kansui and seaweed. Licorice is flat and sweet, and belongs to the Twelve Meridians. It has pharmacological effects such as detoxification, expectorant, analgesic, spasmolytic and even anticancer. In traditional Chinese medicine, licorice tonifies spleen and qi, relieves cough and moistens lung, detoxifies urgently, and harmonizes hundreds of medicines. Clinical application is divided into "raw use" and "honey processing". It can be used for treating sore throat, sore, ulcer, gastrointestinal ulcer, antidote and food poisoning. Honey baking is mainly used to treat hypofunction of spleen and stomach, thin stool, fatigue and fever, cough and palpitation. 1. Used for heart qi deficiency, palpitation, pulse generation, spleen and stomach qi deficiency, fatigue and fatigue. The former is often combined with Guizhi, such as Guizhi Gancao Decoction and Zhigancao Decoction. The latter is often used with Dangshen and Baizhu, such as Sijunzi Decoction and Lizhong Pill. 2. Used for carbuncle, sore, sore throat, etc. Can be used alone, orally or externally, or in combination. Ulcer and ulcer are often used with honeysuckle and forsythia, which play the role of clearing away heat and toxic materials, such as Xianfang Huosheng Drink. Sore throat is often used with platycodon grandiflorum, such as orange stem soup. In case of pesticide and food poisoning, it is often combined with mung beans or decocted with anti-feng shui. 3. Used for asthma and cough. Can be used alone or in combination with other drugs. Such as Erchen decoction for treating wet phlegm and cough; Linggan Wuwei Jiangxin decoction for treating cold phlegm and cough; Sangxing decoction for treating dry phlegm and cough; Orange stem soup for treating lung abscess, cough, foul smell and purulent sputum caused by heat toxin; Licorice and dried ginger soup for treating cough and saliva foam. In addition, wind-heat cough, wind-cold cough and heat-phlegm cough are often used in combination. 4. It is used for stomachache, abdominal pain and acute pain of gastrocnemius muscle contracture. It is often used together with Paeonia lactiflora, which can significantly enhance the curative effect of treating acute pain of contracture, such as Paeonia lactiflora and Glycyrrhiza Decoction. 5. Used to reconcile the potency of certain drugs. For example, seasoning Chengqi decoction can alleviate the diarrhea effect of rhubarb and mirabilite and its stimulation to gastrointestinal tract. In addition, this product is often used to blend various drugs in many prescriptions. In addition, it is used for gastric and duodenal ulcer in modern times, and is often equated with cuttlefish bone and concha arcae. This product also has diuretic effect, so it is often used as an auxiliary medicine to treat heat stranguria and urine pain. Western medicine pharmacology found that Glycyrrhiza uralensis Fisch has anti-inflammatory and anti-allergic functions, so it is mainly used as a moderator in western medicine clinic. Relieve cough, eliminate phlegm and treat sore throat and laryngitis; Glycyrrhiza uralensis Fisch or glycyrrhetinic acid has the function of deoxycorticosterone, which has a good effect on chronic adrenal hypofunction. Glycyrrhiza uralensis preparation can promote the formation and secretion of gastric mucus, prolong the life of epithelial cells, and has anti-inflammatory activity, which is often used to treat chronic ulcer and duodenal ulcer. Flavonoids from Glycyrrhiza uralensis Fisch have anti-inflammatory, antispasmodic and antacid effects. Licorice is also one of the main raw materials of Rendan. Licorice is also widely used in food industry, refining candy, preserves and chewing gum. Licorice extract is an emulsifier for making chocolate, which can also increase the taste and fragrance of beer, improve the consistency and color of dark beer, and make some soft drinks and sweet wine. Cigarette flavoring. Glycyrrhiza uralensis Fisch is also widely used in chemical industry and printing and dyeing industry. The country is old-the king of many medicines. Licorice has been used as medicine for a long time. As early as more than 2,000 years ago, Shennong Herbal Classic listed it as the best medicine. Tao Hongjing, a medical scientist in the Southern Dynasties, respected licorice as "the old man of the country" and said: "This grass is the king of many medicines, and there are few people who don't use it in the classics." "The country is old", that is, the name of the imperial teacher. The reason why Glycyrrhiza uralensis Fisch is regarded as the "imperial teacher" of medicine is just as Li Shizhen explained in Compendium of Materia Medica: "Among all the medicines, Glycyrrhiza uralensis Fisch is the king, treating 72 kinds of milk stone poison, solving 1,200 kinds of plant poison, and harmonizing many medicines, so it has the title of" old country ". According to the determination, the content of glycyrrhizic acid in licorice is about 10%, and there are many components such as mannitol and glucose. Because glycyrrhizic acid is 50 times sweeter than sucrose, licorice is really a "sweet grass".