小青藤，中药名。为防己科植物木防己Cocculusorbiculatus（L.）DC.的茎。分布于华东、中南、西南以及河北、辽宁、陕西等地。具有祛风除湿，调气止痛，利水消肿之功效。常用于风湿痹痛，跌打损伤，胃痛，腹痛，水肿，淋证。
Xiao-qing-teng, name of Chinese Medicinal Material. It refers to the stem of the Menispermaceae plant Cocculus orbiculatus (L.) DC. It is distributed in East China, Central South China, Southwest China, as well as Hebei, Liaoning, Shaanxi, and other regions. It has the effects of dispelling wind and dampness, regulating qi, relieving pain, promoting diuresis, and reducing swelling. It is commonly used for rheumatic pain, injuries from falls or blows, stomach pain, abdominal pain, edema, and urinary disorders.

功效作用 Efficacy and Functions

祛风除湿，调气止痛，利水消肿。
Dispelling wind and dampness, regulating qi to relieve pain, promoting diuresis to reduce swelling.

主治 Indications

用于风湿痹痛，跌打损伤，胃痛，腹痛，水肿，淋证。
Used for rheumatic pain, bruises, stomach pain, abdominal pain, edema, and urinary tract infections.

用法用量 Dosage and Administration

内服：煎汤，9-15g。外用：适量，煎水洗。
Internal use: Decoction, 9-15g. External use: Appropriate amount, decoct with water for washing.

相关论述 Relevant Discussion

1、《贵州民间药物》：“全草，驱风寒，除湿，调气。”

1. "Guizhou Folk Medicine": "The whole plant can dispel wind-cold, remove dampness, and regulate qi."

2、《云南中草药》：“祛风除湿，止痛。主治风湿疼痛，跌打损伤，骨折。”
2. "Yunnan Chinese Herbal Medicine": "Dispels wind and dampness, relieves pain. Used to treat rheumatic pain, bruises, fractures."

3、《四川常用中草药》：“能祛风除湿，消肿。治风湿麻痹，痰湿流注，脚膝瘙痒，胃痛，发痧，气痛。”
3. "Commonly Used Chinese Herbal Medicines in Sichuan": "Effective in dispelling wind and dampness, reducing swelling. Used for treating rheumatic paralysis, phlegm-dampness obstruction, itchy knees and feet, stomach pain, heat rash, and qi pain."

临床应用 Clinical Applications

1、治筋骨疼痛：（木防己）茎12-30g，水煎服。（《湖南药物志》）

1. Treatment for muscle and bone pain: Stem of Woodland Poria (Mu Fang Ji) 12-30g, decoct in water and take orally. (From "Hunan Materia Medica")

2、治淋病：（木防己）茎15-30g，水煎服。（《湖南药物志》）
2. Treatment for gonorrhea: Stem of Woodland Poria (Mu Fang Ji) 15-30g, decoct in water and take orally. (From "Hunan Materia Medica")

加工炮制 Processing and Preparation

采收加工：秋、冬季采收，除去杂质，刮去粗皮，洗净，切段，晒干。
Harvest in autumn and winter, remove impurities, scrape off the rough skin, wash, cut into sections, and sun dry.

植物学信息 Botanical Information

植物种属：防己科植物木防己。
The plant is Sinomenium acutum, a species of the Menispermaceae (Stephania) family.

形态特征 Morphological Characteristics

木防己：又名清风藤、瞒鼓藤、白金丝蛇、大肠藤、箍箩藤、水膏药、小青藤、糯米藤、小金葛、小葛子、苦藤、绵纱藤。木质藤本。嫩枝密被柔毛，老枝近于无毛，表面具直线纹。单叶互生；叶柄长1-3cm，被白色柔毛；叶片纸质至近革质，形状变异极大，线状披针形至阔卵状近圆形、狭椭圆形至近圆形、倒披针形至倒心形，有时卵状心形，长3-8cm，少数超过10cm，宽1.5-5cm，先端渐尖、急尖或钝而有小凸尖，有时微缺或2裂，基部楔形、圆或心形，边全缘或3裂，有时掌状5裂，两面被密柔毛至疏柔毛，有时两面近无毛。聚伞花序单生或作圆锥花序式排列，腋生或顶生，长达10cm或更长，被柔毛；花单性，雌雄异株；雄花：淡黄色；萼片6，无毛，外轮卵形或椭圆状卵形，长1-2mm，内轮阔椭圆形，长达2.5mm；花瓣6，倒披针状长圆形，先端2裂，基部两侧有耳，并内折，长1-2mm；雄蕊6，较花瓣短；雌花：萼片和花瓣与雄花相似；退化雄蕊6，微小；心皮6。核果近球形，成熟时紫红色或蓝黑色，长7-8mm。花期5-8月，果期8-10月。
Akebia: also known as Qingfengteng, Manguteng, Baijinsishe, Dachangteng, Guluoteng, Shuigaoyao, Xiaoqingteng, Nuomiteng, Xiaojingge, Xiaogez, Kuteng, Mianshateng. It is a woody vine. The young branches are densely covered with soft hairs, while the old branches are nearly hairless, with straight lines on the surface. The leaves are alternate; petioles are 1-3cm long, covered with white soft hairs; leaf blades are papery to nearly leathery, with highly variable shapes, ranging from linear lanceolate to broadly ovate nearly circular, narrowly elliptic to nearly circular, lanceolate to inverted heart-shaped, sometimes ovate heart-shaped, 3-8cm long, occasionally exceeding 10cm, 1.5-5cm wide, gradually pointed, acute or blunt with small convex tips at the apex, sometimes slightly notched or 2-lobed, cuneate, round or heart-shaped at the base, entire or 3-lobed margins, sometimes palmately 5-lobed, densely to sparsely soft hairy on both sides, sometimes nearly hairless on both sides. The umbel inflorescences are solitary or arranged in a corymb-like manner, axillary or terminal, up to 10cm or longer, covered with soft hairs; flowers are unisexual, with separate male and female plants; male flowers: pale yellow; sepals 6, hairless, outer ones ovate or elliptic-ovate, 1-2mm long, inner ones broadly elliptic, up to 2.5mm long; petals 6, inverted lanceolate-oblong, 2-lobed at the apex, with ears on both sides at the base, and inwardly folded, 1-2mm long; stamens 6, shorter than petals; female flowers: sepals and petals similar to male flowers; degenerate stamens 6, tiny; carpels 6. The fruit is nearly spherical, purple-red or blue-black when ripe, 7-8mm long. Flowering period is from May to August, and fruiting period is from August to October.

分布区域 Distribution Area

分布于华东、中南、西南以及河北、辽宁、陕西等地，尤以长江流域及其以南各地常见。
Distributed in East China, Central South, Southwest, as well as Hebei, Liaoning, Shaanxi and other regions, especially common in the Yangtze River Basin and its southern areas.

生长环境 Growing Environment

生于山坡、灌丛、林缘、路边或疏林中。
Born on mountain slopes, thickets, forest edges, roadsides, or sparse woods.