净药用狗牙花:净制药用狗牙花
Jing-yao-yong-gou-ya-hua: Yao-yong-gou-ya-hua processed by cleaning.

功效作用 功能
Efficacy and Functions

清热降压，消肿止痛。主治
Clearing heat, lowering blood pressure, reducing swelling, and relieving pain. Specializing in...

高血压，咽喉肿痛，腹痛。用法用量
Hypertension, sore throat, abdominal pain. Dosage and administration.

内服：煎汤，10-15g。注意事项
Internal administration: Decoction, 10-15g. Please pay attention to the following points.

本品有毒，慎服。药理作用
This product is toxic, use with caution. Pharmacological effects.

抗肿瘤作用。相关论述
Anti-tumor effects. Relevant discussions.

《全国中草药汇编》：“主治腹痛。”临床应用 相关配伍
"National Compilation of Chinese Herbal Medicines": "Indicated for abdominal pain." Clinical applications and related compatibility.

1、治腹痛：药用狗牙花根9-15g，水煎服。（《本草图典》）2、治牙痛，咽喉痛：药用狗牙花根、假黄皮叶各适量，水煎含服。（《本草图典》）加工炮制 采收加工

1. Treatment for abdominal pain: Take 9-15g of the roots of Hedyotis diffusa, decoct in water and take orally. (From "Illustrated Classic of Materia Medica")2. Treatment for toothache and sore throat: Take appropriate amounts of the roots of Hedyotis diffusa and the leaves of Patrinia scabiosifolia, decoct in water and use for gargling. (From "Illustrated Classic of Materia Medica") Processing and preparation: Harvesting and processing.

全年均可采，洗净，切片晒干。药材鉴别 药材性状
Harvest throughout the year, wash, slice, and dry in the sun. Medicinal material identification and characteristics.

根呈圆柱形或圆锥形，长8-30cm，直径1-8cm。表面黄棕色或灰棕色，外皮较松软，具纵裂纹，皮部易剥落，露出棕黄色木部，鲜时碰破皮部，有乳汁溢出，故于根皮部剥落处常可见棕色稠状物附着。质坚，不易折断，断面中央木部多呈偏心性。气微，味微苦。植物学信息 植物种属
The roots are cylindrical or conical, 8-30cm long, and 1-8cm in diameter. The surface is yellow-brown or gray-brown, with a relatively soft outer skin, longitudinal cracks, and easy peeling of the skin, exposing the brown-yellow wood underneath. When fresh, breaking the skin will cause latex to ooze out, so brown viscous substances can often be seen adhering to the peeled root bark. The texture is firm, not easily broken, and the central wood on the cross-section is often eccentric. It has a slight odor and a slightly bitter taste. Botanical information about the plant species.

夹竹桃科植物药用狗牙花。形态特征
Nerium oleander, a plant in the Apocynaceae family, is used in traditional Chinese medicine. Here are its morphological characteristics.

灌木，高2-4米，除花外无毛；枝和小枝淡灰色，节间长3-6厘米。叶坚纸质，椭圆状长圆形，稀长圆状披针形，端部通常猝然长尾状渐尖或长突尖，基部近圆形或狭楔形，长7-15厘米，宽3-6厘米（最大的21×8厘米），叶面深绿色，中脉凹陷，叶背淡绿色；中脉凸起，侧脉10-12条，在叶面扁平，在叶背略为凸起；叶柄长3-7毫米。假托叶宽三角状卵圆形，长1.5毫米。聚伞花序腋生，通常二枝成对，生在小枝顶端，成假二叉式，着花约9朵，比叶为短；总花梗：第一级长2.5-4.5厘米，二级长1-2厘米，三级长3-5毫米；苞片与小苞片极小，披针形，长约1毫米；花蕾圆筒形，端部近圆球形；花萼钟状，基部内面无腺体或仅有1-2个，萼片梅花式，卵圆形，钝头，不等长，外面的长1.5毫米，宽1毫米，内面的长1毫米，宽1.5毫米，边缘无毛，透明；花冠白色，花冠筒长2.2厘米，近直立或近喉部向右旋转，直径2毫米，裂片向左覆盖，近垂直，长圆状披针形，近镰刀形，边缘波状，两面具微柔毛，长7毫米，宽2.5毫米；雄蕊着生于近花冠筒喉部膨大之处，花药披针形，长2.5毫米，端部有薄膜，基部狭耳形；子房无毛，卵球形，花柱丝状，柱头2裂，基部棍棒状，具长硬毛。蓇葖双生，或有一个不发育，线状长圆形，近肉质，端部有喙，基部有柄，长1.5-3厘米，直径0.6-1厘米，外果皮在干时呈黑色；种子在每个蓇葖内有1-4粒，不规则卵圆形，约长1厘米，直径约5毫米。花期5-7月，果期8月-翌年4月。分布区域
Shrub, 2-4 meters tall, glabrous except for the flowers; branches and twigs pale gray, internodes 3-6 centimeters long. Leaves coriaceous, elliptic to oblong-ovate, sometimes lanceolate, abruptly caudate-acuminate or long acuminate at the apex, base nearly rounded or narrowly cuneate, 7-15 centimeters long, 3-6 centimeters wide (largest 21×8 centimeters), dark green upper surface, concave midrib, light green lower surface; midrib raised, 10-12 lateral veins, flat on the upper surface, slightly raised on the lower surface; petiole 3-7 millimeters long. Bracts broadly triangular-ovate, 1.5 millimeters long. Umbel inflorescences axillary, usually paired on the ends of twigs, pseudo-dichotomous, about 9 flowers per inflorescence, shorter than the leaves; peduncles: first level 2.5-4.5 centimeters long, second level 1-2 centimeters long, third level 3-5 millimeters long; bracts and bracteoles extremely small, lanceolate, about 1 millimeter long; flower buds cylindrical, nearly globose at the apex; calyx campanulate, without glands at the base or with only 1-2, sepals imbricate, ovate, obtuse, unequal in length, outer ones 1.5 millimeters long, 1 millimeter wide, inner ones 1 millimeter long, 1.5 millimeters wide, margin glabrous, transparent; corolla white, corolla tube 2.2 centimeters long, nearly erect or slightly rotated to the right near the throat, 2 millimeters in diameter, lobes overlapping to the left, nearly perpendicular, oblong-lanceolate, sickle-shaped, wavy margin, sparsely pubescent on both sides, 7 millimeters long, 2.5 millimeters wide; stamens attached near the enlarged part of the corolla tube throat, anthers lanceolate, 2.5 millimeters long, membranous at the apex, narrowly auriculate at the base; ovary glabrous, ovoid, style filiform, stigma 2-lobed, base club-shaped, with long stiff hairs. Fruits in pairs, sometimes one undeveloped, linear-oblong, fleshy, beaked at the apex, stalked at the base, 1.5-3 centimeters long, 0.6-1 centimeter in diameter, black when dry; each fruit contains 1-4 seeds, irregularly ovate, about 1 centimeter long, 5 millimeters in diameter. Flowering period from May to July, fruiting from August to April of the following year. Distribution area.

分布于广东、海南、云南等地。生长环境
Distributed in Guangdong, Hainan, Yunnan, and other regions. Growing environment.

生于海拔150-800m的山地疏林间。
Born in the sparse forests of mountainous areas at an altitude of 150-800 meters.