东当归，中药名。为伞形科植物东当归Angelicaacutiloba(Sieb.etZucc.)Kitag.的根。我国吉林省延边朝鲜族自治州的延吉、珲春、和龙等地有栽培。具有补血活血，调经止痛，润燥滑肠之功效。常用于血虚证，月经不调，痛经，经闭，产后腹痛，肠燥便秘。
Dong-dang-gui, name of Chinese Medicinal Material. the root of the Umbelliferae plant Angelica acutiloba (Sieb. et Zucc.) Kitag., is cultivated in Yanji, Hunchun, Helong, and other areas of the Yanbian Korean Autonomous Prefecture in Jilin Province, China. It is known for its functions of nourishing blood, promoting blood circulation, regulating menstruation, relieving pain, and moisturizing the intestines to relieve constipation. It is commonly used for conditions such as blood deficiency, irregular menstruation, dysmenorrhea, amenorrhea, postpartum abdominal pain, and intestinal dryness and constipation.

功效作用 功能
Efficacy, function.

补血活血，调经止痛，润燥滑肠。主治
Tonifying blood and promoting blood circulation, regulating menstruation and relieving pain, moistening dryness and lubricating the intestines. Mainly used for...

血虚证，月经不调，痛经，经闭，产后腹痛，肠燥便秘。用法用量
Blood deficiency pattern, irregular menstruation, dysmenorrhea, amenorrhea, postpartum abdominal pain, and constipation due to intestinal dryness. Dosage and administration.

内服：煎汤，10-30g。药理作用
Internal administration: Decoction, 10-30g. Pharmacological effects.

东当归煎剂可引起动情前期的未孕大鼠离体子宫平滑肌兴奋，使收缩幅度明显加大，并呈明显的量效关系。对孕早期大鼠离体子宫可明显增加平滑肌收缩的频率，但对收缩幅度的影响不明显。东当归3.3-66.7mg/ml可对抗垂体后叶素引起的大鼠离体子宫平滑肌收缩作用，并呈明显的量效关系。相关论述
Dong Quai decoction can cause excitation of the isolated uterine smooth muscle of non-pregnant rats in the proestrus stage, leading to a significant increase in the amplitude of contractions, showing a clear dose-response relationship. It can significantly increase the frequency of smooth muscle contractions in the isolated uterine of early pregnant rats, but the effect on the contraction amplitude is not significant. Dong Quai at concentrations of 3.3-66.7mg/ml can counteract the contraction effect of posterior pituitary lobe extract on the isolated uterine smooth muscle of rats, also showing a clear dose-response relationship. Related discussions.

1、《吉林中草药》：“补血和血，调经止痛，润燥滑肠。治月经不调，痛经，血虚经闭，腹痛，便秘。”2、《东北常用中草药手册》：“主治经来腹痛，腰痛，崩漏，痢疾腹痛。”3、《台湾常用植物志》：“为温性净血、镇静、强壮药，用于贫血症及妇科，乃通经镇静之要药。”“可带当归之用，惟药性较差。”临床应用 相关配伍

1. "Jilin Herbal Medicine": "Tonifies blood, regulates menstruation, relieves pain, and moistens dryness to lubricate the intestines. Used for irregular menstruation, dysmenorrhea, blood deficiency causing menstrual blockage, abdominal pain, and constipation."2. "Handbook of Common Herbal Medicines in Northeast China": "Mainly used for abdominal pain during menstruation, lower back pain, excessive menstruation, dysentery with abdominal pain."3. "Common Plant Records in Taiwan": "It is a warm, blood-purifying, sedative, and tonic medicine, used for anemia and gynecological conditions, essential for regulating menstruation and calming. Can be used with Angelica sinensis, but its medicinal properties are relatively weak." Clinical applications and related compatibility.

1、治月经不调，血瘀经闭，痛经：当归15g，川芎6g。水煎，每日服2次。（《吉林中草药》）2、治产后血滞腹痛：当归15g，丹参9g。共研细末。每次6g，每日服2次。（《吉林中草药》）3、治血虚肠燥便秘：当归30g。水煎，每日服2次。（《吉林中草药》）加工炮制 采收加工

1. Treatment for irregular menstruation, blood stasis causing menstrual blockage, and dysmenorrhea: Angelica sinensis 15g, Ligusticum chuanxiong 6g. Decoction in water, taken twice daily. (From "Jilin Chinese Herbal Medicine") 2. Treatment for postpartum blood stasis and abdominal pain: Angelica sinensis 15g, Salvia miltiorrhiza 9g. Grind into fine powder. Take 6g each time, twice daily. (From "Jilin Chinese Herbal Medicine") 3. Treatment for blood deficiency, intestinal dryness, and constipation: Angelica sinensis 30g. Decoction in water, taken twice daily. (From "Jilin Chinese Herbal Medicine") Processing and preparation: Harvest and process.

秋季采挖，去其须根、茎叶和杂质，置室内先用微火熏，然后晾干。炮制方法
In autumn, harvest the herbs, remove their roots, stems, leaves, and impurities, then place them indoors to fumigate with a low heat before air-drying them. This is the processing method.

1、东当归：取原药材，置净水中稍浸，闷透，切片。2、酒炒东当归：东当归片用黄酒拌匀，置锅中，炒至微黄，取出晾凉。每10kg东当归用黄酒1kg。药材鉴别 药材性状

1. Process of preparing Angelica sinensis: Take the original herb, soak it in clean water for a while until fully moistened, then slice it.2. Wine-fried Angelica sinensis: Mix the sliced Angelica sinensis with yellow wine, put it in a pot, fry until slightly yellow, then take it out to cool. Use 1kg of yellow wine for every 10kg of Angelica sinensis. Identification of medicinal herbs and their characteristics.

根肥大，长10-18cm。根头及主根粗短，略呈圆柱形，长1.5-3cm，直径1.5-2cm；主根下端分出侧根5-10余条，外形弯曲，长短不一，长3-10cm不等，直径0.2-1cm。表面黄棕色或棕褐色，有不规则的纵皱纹及横向椭圆形皮孔。主根顶端平截，中央为凹陷的茎痕，表面有横纹。质脆易折断，断面平坦，皮部白色或黄白色，有多数油室及裂隙，形成层环棕色，木部黄色或黄棕色，射线密集。具特殊芳香。味甜而后微苦、辛。植物学信息 植物种属
The roots are enlarged, 10-18cm long. The root head and main root are thick and short, slightly cylindrical, 1.5-3cm long, and 1.5-2cm in diameter; the main root gives off 5-10 lateral roots at the lower end, which are curved in shape, varying in length from 3-10cm, and 0.2-1cm in diameter. The surface is yellow-brown or brown, with irregular longitudinal wrinkles and elliptical pores. The top of the main root is flat-cut, with a central concave stem scar, and the surface has horizontal stripes. The texture is brittle and easy to break, with a flat section. The skin is white or yellowish-white, with numerous oil glands and cracks, forming a brown ring layer, the wood is yellow or yellow-brown, with dense rays. It has a special aroma. The taste is initially sweet, followed by a slight bitterness and spiciness. Botanical information about the plant species.

伞形科植物东当归。形态特征
Umbelliferae plant: Angelica sinensis. Morphological characteristics.

多年生草本，高30-100cm。全株无毛，有细纵沟纹。根圆柱状，长10-25cm，粗1-2.5cm，有多数支根，表面黄褐色至棕褐色，有浓香气。叶互生，叶柄长10-30cm，基部膨大成管状叶鞘，茎顶部叶简化成长圆形叶鞘；叶一回至二回三出羽状分裂；叶片膜质，表面亮绿色，背面绿白色，末回裂片披针形至卵状披针形，3裂，长2-9cm，宽1-3cm，先端渐尖至急尖，基部楔形，边缘有尖锐锯齿。复伞形花序顶生或侧生，花序梗、伞辐、花柄无毛或有疏毛；花序梗长5-20cm；总苞片1至数枚，线状披针形；伞辐17-30；小总苞片5-8，线形；小伞花序有花约30朵；花白色；萼齿不明显；花瓣倒卵形至长圆形；花柱长为花柱基的3倍。双悬果狭长圆形，略扁压，长4-5mm，宽1-1.5mm，背棱线形，尖锐，侧棱狭翅状，棱槽内有油管3-4，合生面有油管4-8。花期7-8月，果期8-9月。分布区域
Perennial herb, 30-100cm tall. The entire plant is hairless with fine longitudinal grooves. The root is cylindrical, 10-25cm long, 1-2.5cm thick, with numerous lateral roots, and the surface is yellow-brown to brown with a strong fragrance. Leaves are opposite, with petioles 10-30cm long, the base of which swells into a tubular leaf sheath, and the upper leaves on the stem are simplified into elongated leaf sheaths; leaves are once to twice ternately pinnately divided; leaf blades are membranous, bright green on the surface, green-white on the back, the ultimate lobes lanceolate to ovate-lanceolate, 3-lobed, 2-9cm long, 1-3cm wide, gradually acute to sharply pointed at the apex, cuneate at the base, with sharp serrations along the margins. Compound umbels are terminal or lateral, with peduncles, rays, and pedicels being hairless or sparsely hairy; peduncles are 5-20cm long; involucral bracts 1 to several, linear-lanceolate; rays 17-30; bractlets 5-8, linear; umbels with about 30 flowers; flowers white; calyx teeth inconspicuous; petals inverted ovate to oblong; styles three times as long as the ovary. Fruits are narrowly ellipsoid, slightly compressed, 4-5mm long, 1-1.5mm wide, with linear dorsal ridges, sharp tips, narrow wing-like lateral ridges, and 3-4 oil tubes in the furrows and 4-8 oil tubes on the adaxial surface. Flowering occurs in July-August, and fruiting in August-September. Distribution area.

日本和朝鲜以本种作当归，栽培入药。我国吉林省延边朝鲜族自治州的延吉、珲春、和龙等地有栽培。
In Japan and Korea, this species is cultivated and used as Chinese Angelica. It is also cultivated in places like Yanji, Hunchun, and Helong in the Yanbian Korean Autonomous Prefecture of Jilin Province, China.