Eucommia ulmoides – du zhong

Eucommia ulmoides
[Family, Genus and Medicinal Parts] This product is the bark of Eucommia ulmoides, a plant in the Eucommia family.
[Nature, flavor and meridians] Sweet, warm. Enters the liver and kidney meridians.
[Efficacy] Tonify liver and kidney, strengthen muscles and bones, and prevent miscarriage.
[Clinical Application] 1. Used for liver and kidney insufficiency, waist and knee thinness and pain, fatigue, dizziness, impotence, frequent urination and other symptoms.
The liver governs tendons, and the kidneys govern bones. If the kidneys are strong, the bones will be strong, and if the liver is strong, the muscles will be strong. Eucommia ulmoides can nourish the liver and kidneys, so it has the effect of strengthening the muscles and bones. It is often used for diseases such as liver and kidney deficiency, soreness and fatigue in the waist and knees. In clinical application, depending on the needs of the disease, it may be compatible with Dipsacus, Dog Ridge, etc., or with Tonic. Psoralea, walnuts and the like can be used. This product is warm and tonic in nature and is suitable for treating symptoms of lower Yuan deficiency and coldness. Therefore, it can also be used to treat kidney deficiency, impotence and frequent urination. It is often combined with psoralen, Cuscuta, etc. As for the treatment of dizziness caused by liver and kidney deficiency, it should be used in combination with drugs that nourish the liver and kidneys, such as Ligustrum lucidum.
2. Used for pregnant women with physical weakness, weak fetal vitality, backache, and fetal movement.
This product is used to prevent miscarriage. For example, if pregnant women have uneasy fetal movement and liver and kidney insufficiency, it can be used in combination with Loranth, Atractylodes, Dipsacus, etc.
[Prescription name] Eucommia ulmoides, Eucommia ulmoides, and Eucommia ulmoides (wash, dry, and slice). Grilled Eucommia ulmoides, fried Eucommia ulmoides, and charred Eucommia ulmoides (stir-fry with salt water until slightly charred, whichever one is better for nourishing the kidneys).
[General dosage and usage] Three to five qian, decoct and take. ]
[Note] 1. Eucommia ulmoides can nourish the liver and kidneys and strengthen the muscles and bones. It is mainly used clinically for kidney deficiency and waist pain. This is its specialty. As for its use in fetal dysphoria, it is also caused by liver and kidney deficiency and lack of Chong and Ren.
2. According to modern research, this product also has the effect of lowering blood pressure, which is a new development in its clinical application.
[Examples of prescriptions] Eucommia Pills “Principles of Syndrome and Treatment”: Eucommia ulmoides and Dipsacus. It can be used to treat fetal movement during pregnancy and low back pain.
Jingang Pills “Secrets of Living Methods”: Eucommia ulmoides, Cistanche deserticola, Cuscuta semen, 萆薢, pork loin. Cure muscle and bone weakness.
[Excerpt from literature] “Herbal Classic”: “It treats lumbar and spinal pain, nourishes the middle, replenishes essence and qi, strengthens muscles and bones, strengthens will, and removes itching and dampness under the genitals and residual urine.”
“Bielu”: “Cure the pain in the feet and avoid stepping on the ground.”
“Medicinal Properties and Materia Medica”: “Cure kidney cold, kidney and waist pain; people with deficiency and stiffness of the body, wind, and low back pain, use it in combination.
This product is the dried bark of Eucommia ulmoides Oliv, a plant of the Eucommia family. Peel them from April to June, scrape off the rough skin, pile them to “sweate” until the inner skin turns purple-brown, and dry them in the sun.
【Character】
This product is in the shape of a plate or has both sides slightly rolled inward, with different sizes and a thickness of 3~7mm. The outer surface is light brown or gray-brown, with obvious wrinkles or longitudinal cracks. Some barks are thin and the bark is not removed, and obvious lenticels can be seen. The inner surface is dark purple and smooth. It is brittle and easy to break, and the cross section is connected by fine, silver-white, elastic rubber threads. The smell is slight and the taste is slightly bitter.
【Identification】
(1) The powder of this product is not brown. The rubber filaments are in strips or twisted into groups, and the surface is granular. There are many stone cells, mostly in groups, almost rectangular, round, long or irregular in shape, about 180um in length and 20~80um in diameter, with thick walls, and some cells contain rubber masses in the cavity. The cork cells are polygonal in surface view, with a diameter of 15~40um, and the walls are unevenly thickened, lignified, and have small holes: rectangular in side view, with walls
Three sides are thickened, one side is thin, and the holes and grooves are obvious.
(2) Take 1g of this product powder, add 10ml of chloroform, soak for 2 hours, and filter. The filtrate was evaporated to dryness, and 1 ml of ethanol was added to produce an elastic film.
【Extract】
Determine according to the hot soak method under the determination of alcohol-soluble leachables (General Chapter 2201), using 75% ethanol as the solvent, not less than 11.0%.
【Content determination】
Determine according to high performance liquid chromatography (General Chapter 0512).
Chromatographic conditions and system suitability test: Use octadecyl alkane-bonded gum as the filler: methanol-water (25:75) as the mobile phase; the detection wavelength is 277nm. The number of theoretical plates should not be less than 1,000 based on pinoresinol diglucoside peak.
Preparation of reference substance solution: Take an appropriate amount of pinoresinol diglucoside reference substance, weigh it accurately, add methanol to make a solution containing 0.5mg per 1ml, and you have it. Preparation of the test solution: Take about 3g of this product, cut it into pieces, knead it into flocs, take about 2g, weigh it accurately, put it in a Soxhlet extractor, add an appropriate amount of chloroform, heat and reflux for 6 hours, discard the three Use the methyl chloride liquid and remove the chloroform from the medicinal residue, then place it in a Soxhlet extractor, add an appropriate amount of methanol, and heat and reflux for 6 hours. Recover an appropriate amount of methanol from the extract, transfer it to a 10ml measuring bottle, add methanol to the mark, and shake well. , filter, and take the continued filtrate to obtain.
Determination method: Precisely absorb 10m each of the reference solution and the test solution, inject them into the liquid chromatograph, and measure.
This product contains pinoresinol diglucoside (C32H42016) not less than 0.10%.
Drinking pieces
[Processed]
Scrape off the remaining rough skin of Eucommia ulmoides, wash, cut into pieces or shreds, and dry.
【Character】
This product is in the form of small squares or filaments. The outer surface is light brown or grayish brown with obvious wrinkles. The inner surface is dark purple and smooth. The cross section is connected by fine, silver-white, elastic rubber threads. Smells slightly, tastes slightly bitter
[Identification] [Leachate] [Content Determination]
Same medicinal materials.
Salted Eucommia ulmoides: Take pieces or shreds of Eucommia ulmoides and fry them according to the salt roasting method (General Rule 0213) until the threads are broken and the surface is burnt black. [Properties]
This product is shaped like Eucommia ulmoides blocks or silk, with dark brown surface and brown inner surface. The rubber silk has poor elasticity when broken. Slightly salty taste
【examine】
Moisture content must not exceed 13.0%.
The total ash content shall not exceed 10.0%.
【Extract】
Same medicinal materials, no less than 12.0%
【Identification】【Content Determination】
Same medicinal materials.
【Nature, flavor and meridian tropism】
Sweet, warm. Returns to the liver and kidney meridians.
[Functions and Indications]
Tonify the liver and kidneys, strengthen muscles and bones, and prevent miscarriage. It is used for liver and kidney deficiency, soreness of waist and knees, weakness of muscles and bones, dizziness, bleeding during pregnancy, and uneasy fetal movement.
【Usage and Dosage】
6~10g.
【Storage】
Store in a ventilated and dry place.
Where are the main origins of Eucommia ulmoides?
Mainly produced in Shaanxi, Sichuan, Yunnan, Guizhou and Hubei.
Where are the main medicinal parts of Eucommia ulmoides?
The medicinal parts of Eucommia ulmoides:
The dry bark of Eucommia ulmoides Oliv., a plant in the Eucommia family,
Characteristics of the medicinal parts of Eucommia ulmoides:
This product is in the shape of a plate or has both sides slightly rolled inward, with different sizes and a thickness of 3~7mm. The outer surface is light brown or gray-brown, with obvious wrinkles or longitudinal cracks. Some barks are thin and the bark is not removed, and obvious lenticels can be seen.
The inner surface is dark purple and smooth. It is brittle and easy to break, and the cross section is connected by fine, silver-white, elastic rubber threads. Smells slightly, tastes slightly bitter
How is Eucommia ulmoides recorded in ancient historical books?
“Herbal Classic”: “It treats lumbar and spinal pain, nourishes the middle and replenishes essence and Qi, strengthens muscles and bones, and strengthens the will. It removes itching and dampness under the genitals and residual urination.”
“Famous Doctors”: “Cure the soreness in the feet and avoid stepping on the ground.
“Compendium of Materia Medica”: “Sweet and warm can nourish, slightly pungent can moisturize. Purple color enters the liver meridian, moistens liver dryness and nourishes liver deficiency.”
Function and efficacy
Eucommia ulmoides has the functions of nourishing the liver and kidneys, strengthening the muscles and bones, and preventing miscarriage.
What are the main functions and clinical applications of Eucommia ulmoides?
Eucommia ulmoides is used for liver and kidney insufficiency, waist and knee pain, muscle and bone weakness, dizziness, blood leakage, and fetal movements.
Kidney deficiency, low back pain and various low back pain
·To treat kidney deficiency and low back pain, it can be taken alone or mixed with Eucommia ulmoides leaves.
It can be used to treat wind arthralgia, weakness of muscles and bones, difficulty in flexion and extension, difficulty in walking, pain in waist and knees, aversion to cold and preference for warmth, etc. It is often used with Duhuo, Ligusticum Chuanxiong, and Angelica sinensis to treat low back pain and waist pain caused by insufficient kidney yang and blood stasis blocking the collaterals. For muscle strain, it is often used with psoralen, angelica, and Dipsacus;
·To treat traumatic low back pain, it is often used together with Guixin, Salvia miltiorrhiza, and Chuanxiong rhizome.
Fetal leakage, fetal movements
It can be used to treat liver and kidney deficiency, hemorrhage during pregnancy, uneasy fetal movement, etc. due to insufficient Chong and Ren. It can be used alone as powder, boiled jujube meat and taken as pills; or it can be used in the same way as Atractylodes, Cuscuta, and Dipsacus.
What other effects does Eucommia ulmoides have?
In my country’s traditional food culture, some Chinese medicinal materials are often widely eaten as food ingredients among the people, that is, substances that are both food and Chinese medicinal materials according to tradition (i.e., edible medicinal substances). According to documents issued by the National Health Commission and the State Administration for Market Regulation, Eucommia ulmoides can be used as both medicine and food within a limited range of use and dosage.
Commonly used medicinal recipes for Eucommia ulmoides are as follows:
Sitting for a long time or being tired, soreness in the lower back
Eucommia ulmoides 50g (chopped), rice wine 500mL, soak for 7 days and take 2 tablespoons each time.
Low back pain, impotence and nocturnal emission, fetal movements, etc.
10g of Eucommia powder and 1 pig kidney. Wash and slice the pork loin, remove the fishy water with pepper and salt, mix in the minced Eucommia ulmoides, wrap it in lotus leaves, simmer and eat.
Women who are pregnant, have backache, uneasy fetal movement, or habitual miscarriage
12g Eucommia ulmoides, 10 red dates, 100g glutinous rice. Decoct Eucommia ulmoides and jujube in water to get thick juice, add glutinous rice to make porridge, and eat it on an empty stomach in the morning and evening.
What are the compound preparations containing Eucommia ulmoides?
Whole Eucommia Capsules
Nourishes the liver and kidneys, strengthens muscles and bones, and lowers blood pressure. For patients with kidney deficiency, low back pain, weakness of the waist and knees, and high blood pressure who see the above symptoms, use Qiangqiang Tianma Duzhong Pills
Disperses wind, activates blood circulation, relaxes muscles and relieves pain. It is used for muscle and pulse pain caused by stroke, numbness of limbs, inconvenience in walking, pain in waist and legs, headache and dizziness.
Qing’e Pill
Tonify the kidneys and strengthen the waist. Used for kidney deficiency, low back pain, difficulty in sitting up, and weak knees.
Duhuo Jisheng Soup
It can dispel rheumatism, relieve paralysis and pain, benefit liver and kidney, and replenish qi and blood. It mainly treats symptoms of prolonged paralysis, liver and kidney deficiency, and deficiency of qi and blood. Pain in the waist and knees, flaccidity, difficulty in flexing and extending the limbs, or numbness, aversion to cold and preference for warmth, palpitations and shortness of breath, pale tongue with white coating, and thin and weak pulse.
Eucommia Pills
To treat miscarriage in women, take Eucommia ulmoides as powder and boiled jujube meat paste as pills.
Modern research progress on Eucommia ulmoides
This product has various pharmacological effects such as lowering blood pressure, enhancing immunity, promoting bone cell proliferation, delaying aging, lowering blood lipids, analgesic, sedative, anti-inflammatory, diuretic, and increasing white blood cells.
How to use
Eucommia ulmoides has the functions of nourishing the liver and kidneys, strengthening the muscles and bones, and preventing miscarriage. It can be taken as a decoction, soaked in water, wine or soup. But no matter which method is used, it needs to be taken according to the doctor’s instructions.
How to use Eucommia ulmoides correctly?
When Eucommia ulmoides decoction is taken orally, the usual dosage is 10~15g.
Eucommia ulmoides can be produced by different processing methods to produce eucommia ulmoides, salt eucommia and other Chinese herbal medicine pieces. Stir-frying is more effective than raw use. Different preparation methods have different effects, but the medication method is the same. Please follow your doctor’s advice for specific medication.
Eucommia ulmoides is usually taken in decoction or decoction. It can also be made into powder or pills. However, the use of Chinese medicinal materials requires syndrome differentiation and treatment, and should be used under the guidance of professional Chinese medicine practitioners. They should not be used at will, let alone listen to traditional Chinese medicine prescriptions and advertisements.
In addition, Eucommia ulmoides can also be used for daily health care. Commonly used methods of consumption are as follows:
Make tea (Ucommia ulmoides tea): Grind Eucommia ulmoides and mulberry into powder one by one, brew it with boiling water and drink it, which can nourish the liver and kidneys and lower blood pressure.
Soak in wine: Soak Eucommia ulmoides in wine and drink it, which can nourish the liver and kidneys.
How to prepare Eucommia ulmoides?
Eucommia ulmoides
Take the raw medicinal materials, remove impurities, scrape off the remaining rough skin, wash, cut into pieces or shreds, and dry. Salt Eucommia
Take pieces or shreds of Eucommia ulmoides, add salt water, mix well, moisten, fry over medium heat until the shreds are broken and the surface is burnt black, take it out, spread it out in time, and let it cool thoroughly. For every 100kg of Eucommia ulmoides, use 2kg of table salt.
Which drugs require special attention when used together with Eucommia ulmoides?
The combined use of traditional Chinese medicine and Chinese and Western medicine requires syndrome differentiation and clinical individualized treatment. If you are using other medicines, please consult a doctor before taking medicine, and inform the doctor of all your diagnosed diseases and the treatment plans you are receiving.
Medication instructions
Eucommia ulmoides is warm in nature, so people with yin deficiency and excessive fire should take it with caution.
What precautions should be taken when using Eucommia ulmoides?
Stir-frying destroys the colloid and facilitates the decoction of the active ingredients, so it is more effective than raw use.
This product is a warming and tonic product, and should be used with caution by those with yin deficiency and excessive fire.
Pregnant and lactating women: If you are pregnant, planning to become pregnant or lactating, please inform your doctor in time and consult whether Chinese medicine can be used for treatment.
·Children: Medication for children must be done under the guidance of a doctor and adult supervision.
·Please keep the medicinal materials properly and do not give the medicinal materials you use to others.