Folium Isatidis

Folium Isatidis

(Tang materia medica)

[synonym] Daqing (collection village of Materia Medica Classic).

[source] it is the leaves or branches of Verbenaceae, Polygonum lappa, Isatis indigotica, Cymbidium lappa, etc. For details of plant morphology, please refer to "daqinggen", "Lanshi" and "Banlangen".

[collection] ① roadside cream leaves were harvested from July to August and dried in the sun.

② Polygonum lappa L

The leaves were collected and dried in the sun before and after the light heat and White Dew.

③ Isatis indigotica leaves

The leaves were harvested and dried from August to October.

④ Indigo leaf

From August to November, the stems and leaves were cut and dried in the sun.

[herbal medicine] 1

The dry leaves (or the leaves and young branches were cut into small segments) were slightly wrinkled, long oval to slender oval, 5-16 cm long. The upper part is brownish yellow, brownish green to dark brownish red, the lower part is lighter, entire, apex acuminate, base obtuse. Paper and crisp. It is slightly smelly, slightly bitter and astringent. It is better to have big leaves and no stalk.

It is mainly produced in Hunan, Hubei, Jiangxi and other places. In addition, it is also produced in Guangxi, Fujian and other places.

② Polygonum lappa L

Dry leaves (sometimes with branches), many shrunk, sometimes broken. The intact ones are oblong to obovate, about 5-8 cm long and 3-5 cm wide. They are broad like peach leaves. The apex is obtuse, and the base is gradually narrow. Most of them are wavy, with slightly yellow Tricholoma, yellow main vein and sparse Tricholoma. Petiole flat, about 1 cm long, base with membranous sheath, transparent, gray white, its edge with sparse long hair. It's brittle. The air is slightly smelly, the taste is slightly astringent and bitter. It is better to have thick leaves, blue-green color, no branches and crispness.

It is mainly produced in Hebei, Beijing, Shanxi and other places.

③ Isatis indigotica leaves

Dry leaves wrinkled into clumps, sometimes broken, grayish green or yellowish brown. The complete leaves are oblong to oblong oblong oblanceolate, 4-11 cm long and 1-3 cm wide, entire or microwavy; apex obtuse, base gradually narrowed, extending into wing shape, sometimes with punctate protuberances on the top and obvious midrib on the bottom. Petiole 5-7 cm long, ventral slightly concave. It's brittle. The gas is weak and the taste is slightly bitter. It is better to have big leaves, no stalk and dark gray green color.

It is mainly produced in Jiangsu, Anhui, Hebei, Henan, Zhejiang and other places.

④ Indigo leaf

The leaves (sometimes with young branches) are shrunk into lumps. The complete ones are oblong, obovate oblong or elliptic needle shaped, 8-15 cm long and 3-5 cm wide. The apex is acuminate and the base is narrower. The leaf margin is small and obtuse serrated, with black green to dark brown black on the top, light color on the bottom, and obvious under the veins. The petiole is 1-2 cm long. It's brittle. Weak Qi, astringent and slightly bitter taste. It is better to have clean leaves, no branches and black green color.

Mainly produced in Fujian, Guangxi, Guangdong, Jiangxi, Zhejiang and other places. In addition, it is also produced in Sichuan, Yunnan, Guizhou, Hunan and Hubei.

Daqing in compendium and textual research of plant names and facts are all Verbenaceae plants.

[processing] remove impurities and dead leaves, wash, moisten, cut into sections and dry in the sun.

Bitter, cold.

① Bielu: "bitter taste, cold, non-toxic. "

② "Ganwei": on the nature of drugs. "

③ "Compendium": "cold Qi, slightly bitter and salty taste. "

[channel tropism] into liver, heart and stomach channels.

① "To match the materia medica": "enter the Foot Yangming, hand Shaoyin. "

② According to Bencao Zaixin, "it enters the liver and spleen meridians. "

⑧ In the compendium of materia medica: "entering the foot to recover Yin and Shaoyin meridians. "

Functions and indications: clearing away heat, detoxifying, cooling blood and stopping bleeding. It is used to treat febrile diseases, febrile fever, febrile thirst, influenza, acute infectious hepatitis, bacillary dysentery, acute gastroenteritis, acute pneumonia, erysipelas, hematemesis, bleeding, jaundice, dysentery, laryngitis, aphthous ulcer, carbuncle and swelling.

① Bielu: "treat Qi, headache, fever and aphtha. "Blue leaf juice can kill all kinds of poisons, detoxify Stellera chamaejasme, and kill no poison. "

② Tao Hongjing: "it's often used in prescriptions for treating cold injuries. It's good to get rid of heat and toxin. "Blue juice, to detoxify. Apply juice to five hearts, and stop being bored. It is very effective in treating bee and crab poison. "

③ "Compendium": "main heat toxin dysentery, jaundice, throat obstruction, erysipelas. "Blue leaf juice, solution cantharidin, Yuanqing, Ailanthus chicken, cinnabar, arsenic stone poison. "

④ Ben Cao Zheng: "it can cure fever, fever, rash, swelling and pain of carbuncle, eliminate thirst, stop epistaxis, hematemesis, kill chancre, golden sores and arrow poison. For those with heat and poison, it is suitable to mash the juice with blue leaves. "

⑤ "Clearing heat and purging fire, cooling blood and detoxifying, dispersing blood stasis and stopping bleeding" is a common Chinese herbal medicine manual of Guangzhou army. Treatment of enteritis, bacillary dysentery, pharyngitis, tonsillitis, mumps, cold, fever, gingival bleeding. "

⑥ "Jiangxi herbal medicine": "treatment of acute hepatitis, tuberculosis, silicosis, toothache, snakebite, allergic dermatitis. "

[usage and dosage] oral administration: decoction, 3-5 yuan (fresh 1-2 Liang); or mashed juice. External use: tamping or frying and washing.

[should avoid] it should not be taken if the spleen and stomach are deficient and cold.

① The classic of materia medica: "it should not be applied to people with deficiency of cold and weak spleen. "

② Ben Cao Cong Xin: "don't use it unless it's caused by heat in the heart and stomach. "

③ "Debei Materia Medica": it is forbidden to use the method of empty diarrhea. "

[prescription selection] ① prevention of encephalitis B and epidemic cerebrospinal meningitis: Folium Isatidis, five coins, one or two soybeans, fried in water, one dose a day for seven days. (Jiangxi herbal medicine)

② Treatment of encephalitis B, meningitis, cold, fever, mumps: Folium Isatidis five money to one or two, sea gold sand root one or two. (Jiangxi herbal medicine)

③ Treatment temperature toxic hair spot: four taels of Daqing, two taels of licorice, two taels of gum, eight TAE. Take a bucket of water, boil two things, take three and a half liters, remove the dross, take the soy sauce, boil three times, remove the dross, which is Najiao. Divide it into four servings, and then combine them. This treatment lasted for seven or eight days, and it was very good for sweating and vomiting. (behind the elbow)

④ When the treatment line Zhuang hot headache, hair sores such as peas all over the body: green three Liang, gardenia 27 (break), rhinoceros horn (chip) one or two, black beans five. Cut the upper four flavors into five liters of water, boil two liters, and take them in three parts without any taboo. (Da Qing Tang in Yan Nian Fang)

⑤ For the treatment of measles, the color is too red, or slightly purple, or too much: Daqing, Yuanshen, Shengdi, gypsum, Anemarrhena asphodeloides, Akebia, rehmannia, Schizonepeta tenuifolia, liquorice, and lophatherum. Take it in hot water. (Duan Ximeng's "pox rash heart method" Daqing Decoction)

⑥ Treatment of rubella, erysipelas: big green smash, alligator that powder (first to magnetic needle to evil blood). (Ben Cao Hui Yan)

⑦ Treatment of heat very jaundice: green two liang, Yinchen, Gentiana each one or two, trichosanthin eight money. Take it in water. (Fang Mai Zheng Zong)

⑧ Treatment of hepatitis without jaundice: two taels of Folium Isatidis, one or two Salvia miltiorrhiza and ten jujubes. Take it in water. (Shandong Handbook of Chinese herbal medicine)

⑨ The dead: four liang of Daqing, three liang of Glycyrrhiza and Chishizhi, two liang of Jiaoer and eight he of Douchi. Take a bucket of water, boil three liters, take three servings, do more, two doses day and night. (Da Qing Tang in the back of the elbow)

⑩ Treatment of infantile dysentery: mash two liters of blue juice and take it in four parts. (secret records of son and mother)

Baijiu is hot and hot, malaria is hot. (Fang Mai Zheng Zong)

(12) treatment of pneumonia, high fever, asthma and cough: fresh Folium Isatidis 1 to 2 liang. Mash minced juice, mix a little honey, stew hot, warm, twice a day. (Quanzhou materia medica)

To cure upper Qi cough, to sip and breathe, to make a sound in the throat, and to spit sticky: soak the blue solid leaves for a long time, pound and wring the juice for a liter, take it on an empty stomach, take it with almond juice for porridge in a moment, take it for a day or two, take it according to the previous method, and spit. (Mei Shi Ji Yi Fang)

(14) treatment of blood drenching, urination and urination: fresh Folium Isatidis 1-2 Liang, raw land 5 yuan. Take it with water and rock sugar. Twice a day. (Quanzhou materia medica)

For the treatment of laryngeal wind and obstruction of the larynx, it is necessary to infuse the juice of Folium Isatidis and take effect. (Yi Jian Fang for health)

(16) treatment of throat lip swelling, tongue erosion, mouth sweet face heat: two taels of Dahuang, Cimicifuga, rhubarb (file, fried), three taels of raw and dried Rehmannia (cut, baked). Sift the four flavors. Every time you take two daggers, fry one with water until seven minutes. Remove the dross and take it gently. The benefit will be better. (Da Qing Tang, Shengji Zonglu)

⒄⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄ ⒄. On the two flavors, finely cut, with three liters of water, boil one liter two, one take one. Day and night. (Qian Jin Fang)

(18) treatment of big head plague: wash the fresh green leaves, mash them and apply them to the affected area externally. At the same time, take one or two fresh green leaves and take them orally in decoction. (Quanzhou materia medica)

(19) treatment of brain heat deafness: one or two for each of Daqing, rhubarb (file, stir fry), gardenia (peeled), astragalus (system), Cimicifuga, Coptis (whisker removed), and two or two for puerarin. The seven tastes are ramming, and the honeyed pills are like the Wutong seed. Take 30 pills each time, under warm water. (Da Qing Wan, Shengji Zonglu)

Treatment of lymphadenitis; appendiceal infection and other inflammation: Folium Isatidis, hibiscus leaves each half Jin, dandelion three Liang. Fry in water for 12 hours, take 2000 ml of juice, take 20 ml each time, three times a day. (Jiangxi herbal medicine)

(21) prevention and treatment of rash, furuncle and rash: one large green leaf (fresh) three Liang. Take it in water, one dose a day. Appropriate amount of erdaqingye, decoct the concentrated juice with water, add appropriate amount of peppermint oil, wash the affected area, two to three times a day. (Jiangxi herbal medicine)

[clinical application] ① treatment of epidemic encephalitis B

According to the observation of hundreds of cases, the cure rate was 93 ~ 98%. In most cases, the body temperature dropped to normal within 1-4 days after taking the medicine, and then the headache disappeared, and other symptoms gradually relieved, but the pathological reflex mostly disappeared 3-5 days after the fever subsided. According to clinical observation, the effect of single herb of Folium Isatidis on mild and severe cases is better. For extremely severe cases, it should be combined with other Chinese and Western therapies. Even in the treatment process of using single herb Folium Isatidis, it is often necessary to use acupuncture, western medicine and other symptomatic treatment, or other traditional Chinese medicine according to the principle of syndrome differentiation. Different varieties of Folium Isatidis were reported in different places, including Isatis indigotica of Cruciferae and Malan of Acanthaceae, which were commonly used in clinical practice

Chinese PinYin : Da Qing Ye