This product is the bark of Eucommia Bark (Eucommia ulmoides Oliv.), a deciduous tree plant of the Eucommia Bark family. Mainly produced in Sichuan, Yunnan, Guizhou, Hubei and other places. 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. Cut into pieces or shreds, use raw or roasted in salt water.

[Property]

sweet, warm. act on liver and kidney channels.

[Efficacy]

Nourish liver and kidney, strengthen muscles and bones, calm fetus.

[Indications]

1. It is used for symptoms such as soreness in the waist and knees due to liver and kidney deficiency, weak impediment and impotence, and frequent urination. It can nourish the liver and kidneys, strengthen the muscles and bones, and warm the lower yuan. To treat lumbago and weak feet, Psoralea and walnut kernel meat are often used, such as Taiping Huimin Heji Jufang Young Maid Pill ; To treat impotence and frequent urination, it can be used equally with Dodder Seed, Dodder Seed, palmleaf raspberry fruit .
2. Used for liver and kidney deficiency, pregnancy bleeding, threatened abortion, or habitual late abortion, etc. It can tonify the liver and kidneys, regulate Chong and Ren, and strengthen menstruation and calming fetus. To treat fetal movement lumpago such as falling, it can be mixed with Dipsacus and ground into powder, and Jujube Meat can be taken as pills, that is, Zhengzhi Zhunsheng Eucommia Bark Pills. It can also be used in combination of medicinals Dipsacus, Dodder Seed, Donkey-hide Gelatin, etc.
3. It is used in modern clinical practice for hypertension and has a reliable blood pressure lowering effect. For the elderly with kidney deficiency and high blood pressure, it can be used with Epimedium Herb, Chinese Taxillus Herb, Achyranthes Root; if liver For those with excessive yang liver fire, it can be used with Prunella, Chrysanthemum Flower, Skullcap Root, etc.

[Documentation]

1. Benjing: "It treats lumbar and spinal pain, nourishes the middle part of the body, benefits essential qi, strengthens muscles and bones, strengthens will, removes itching and dampness under the genitals, and residual urine."
2. Bencao Huiyan: "Any deficiency in the lower energizer cannot be remedied if it is not Eucommia Bark; dampness in the lower energizer cannot be unfavorable if it is not Eucommia Bark; pain in the shins cannot be removed if it is not Eucommia Bark; pain in the waist and knees is not Eucommia Bark. No. …It is an important medicine to nourish the liver and kidneys.”

[Usage and Dosage]

Decoct and take 10-15g. The curative effect of stir-frying is better than that of raw use.

[Modern Pharmacology]

This product contains Eucommia Bark gum, Eucommia Bark glycoside, rosin diglucoside, peach coral glycoside, tannins, flavonoids, etc.

1. Eucommia Bark has a good antihypertensive effect and can reduce the absorption of cholesterol. Its antihypertensive effect is that fried Eucommia Bark is greater than raw Eucommia Bark, and fried Eucommia Bark decoction is better than tincture. However, repeated administration can easily lead to tolerance.
2. It can weaken the voluntary contraction of isolated uterus and antagonize the effect of uterus contractile agents (acetylcholine, pituitaryin) to relieve spasm.
3. decoction has a significant strengthening effect on the isolated heart of rabbits; it has a diuretic effect on dogs, rats and mice; it also has a certain analgesic effect. It also enhances the animal's adrenal cortex function, enhances the body's immune function and has a sedative effect.