Achyranthes bidentata, Shennong Herbal Classic is listed as the top grade. As for its shape, the detailed preparation described in the outline is "square stem, opposite leaves, a bit like amaranth leaves, long and sharp, blooming in autumn, bearing seeds in the ear, looking like negative insects and mice with rough hair, all sticking to the stem and upside down". On its origin, it is called "born in Kawaguchi Linqu". Tao Hongjing also said: "Take a shortcut today, and Caizhou people grow up the most." According to Hanoi, today, most areas north of the Yellow River in Henan, namely Guhuai Qingzhou, include Qinyang, Wuzhi, Mengxian, Huixian and Aibo counties. Linqu is in today's Shandong Province, and Cai Zhou is Xincai. Su Song's Materia Medica is comprehensive. "Today, there are also Jiang, Huai, Min, Yue and Guanzhong, but they are not as real as Huaizhou." Kou Zongshuang's Materia Medica Yan Yi also said, "Xijing is a kind of land today, and the best one is three feet long." Xijing is now Luoyang, Henan, not far from Qinyang and Wuzhi, indicating that Achyranthes bidentata was planted in Henan 800 years ago. Combined with the pictures of Achyranthes bidentata in materia medica, its taproot is thick and straight, which is completely consistent with Achyranthes bidentata in "Four Famous Drugs of Huai Dynasty".

Preparation of wine Achyranthes bidentata: Wash Achyranthes bidentata, stir-fry in a pot, spray yellow wine, stir-fry until it is slightly dry, take it out and let it cool (with yellow wine 100 kg).

Features: This product is slender and cylindrical, slightly curved, slightly thicker at the upper end and thinner at the lower end, with a length of 15 ~ 50 (90) cm and a diameter of 0. 4 ~ 1 cm. The surface is grayish yellow or light brown, with slightly twisted and subtle longitudinal wrinkles, horizontal lenticels and sparse fine root marks. Hard and brittle, easy to break, soft when wet, flat, yellow-brown, slightly horny and oily, with a large central vascular bundle, yellow-white, and many dotted vascular bundles scattered around it, arranged in 2-4 rounds. Slight gas, slightly sweet and slightly bitter.

distinguish

(1) Cross section: The cork layer is a series of cells. The cortex is narrow. Vascular bundles are arranged intermittently in 2 ~ 4 rounds; The outermost vascular bundle is small, sometimes only 1 to several ducts; The cambium forms a circle; The inward vascular bundle is large, and the xylem is composed of vessels, wood fibers and wood parenchyma cells. The central xylem integrates 2 ~ 3 groups. The parenchyma cells contain calcium oxalate sand crystals.

(2) Take 2g powder of this product, add 20ml ethanol, heat and reflux for 40min, and let stand. Take 10ml supernatant, add 1ml hydrochloric acid, heat and reflux 1 hour, then concentrate to 5ml, add 10ml water, extract with 20 ml petroleum ether (60 ~ 90℃), evaporate the extract, and dissolve the residue with 2ml ethanol as the test solution. Another oleanolic acid reference substance is added with ethanol to prepare a solution containing 1 ml as the reference substance solution. According to the thin-layer chromatography test (appendix ⅵ b), absorb10 ~ 20μ l of test solution and 10μl of reference solution, respectively, and spot them on the same silica gel H thin-layer plate, with sodium carboxymethyl cellulose as adhesive and chloroform-methanol (40: 1) as developing agent, unfold, take them out and dry them. In the chromatogram of the test sample, the same blue spots appear in the corresponding position of the chromatogram of the control sample.

Bitter, sour and flat in nature. Enter the liver and kidney meridians.

Its main functions are nourishing liver and kidney, strengthening tendons and bones, removing blood stasis and dredging collaterals, and inducing blood to descend. Used for hyperactivity of liver yang, soreness of waist and knees, weakness of muscles and bones, amenorrhea and dizziness.

clinical application

(1) is used for amenorrhea due to blood stasis, postpartum stasis pain and traumatic injury. Compatibility with safflower, peach kernel, angelica and corydalis tuber can not only promote blood circulation and regulate menstruation, but also dispel blood stasis and heal sores.

(2) Used for soreness of waist and knees and soreness of feet and knees. For soreness and weakness of waist and knees caused by liver and kidney deficiency, it is often used with Atractylodes macrocephala, Sagittarius sagittarius and Papaya. For example, it is often used with Atractylodes lancea and Cortex Phellodendri for lumbago and knee pain caused by damp heat. For example, arthralgia due to rheumatism, arthralgia of lower limbs, etc., it can be used equally with papaya, Ji Fang and Duhuo.

(3) For hematemesis, nosebleed, gum swelling and pain, headache and dizziness. For patients with blood-heat syndrome, it is often combined with cacumen Platycladi, lalang grass rhizome and thistle to treat hematemesis and epistaxis. It can also be combined with Radix Rehmanniae and Gypsum Fibrosum. Treating gingival swelling and pain belongs to those with yin deficiency and excessive fire; For hyperactivity of liver yang, headache and dizziness, it is often combined with ochre, keel and oyster.

(4) It can be used for dysuria, stranguria, astringent pain and hematuria. Equivalent to carnation, talc and medulla tetrapanacis.

Usage and dosage 4. 5 ~ 9g。

Pay attention to pregnant women with caution.

Store in a cool and dry place to prevent moisture.

Excerpt from China Pharmacopoeia