金线风，中药名。为防己科植物粉叶轮环藤Cycleahypoglauca(Schauer)Diels的根或藤茎。分布于江西、福建、台湾、湖南、广东、海南、广西、云南、贵州等地。具有清热解毒，祛风止痛，利水通淋之功效。常用于风热感冒，咳嗽，咽喉肿痛，白喉，风火牙痛，肠炎，痢疾，尿路感染及尿路结石，风湿疼痛，疮疡肿毒，毒蛇咬伤。
Jin-xian-feng, name of Chinese Medicinal Material. the root or stem of the plant Cycleahypoglauca (Schauer) Diels in the Menispermaceae family. It is distributed in Jiangxi, Fujian, Taiwan, Hunan, Guangdong, Hainan, Guangxi, Yunnan, Guizhou, and other places. It has the functions of clearing heat and detoxification, dispelling wind and relieving pain, promoting diuresis and relieving stranguria. It is commonly used for wind-heat type of cold, cough, sore throat, diphtheria, toothache due to wind-heat, enteritis, dysentery, urinary tract infection and urinary stones, rheumatic pain, abscesses, and snake bites.

功效作用 Efficacy and Functions

清热解毒，祛风止痛，利水通淋。
Clearing heat and detoxifying, dispelling wind and relieving pain, promoting diuresis and treating stranguria.

主治 Indications

用于风热感冒，咳嗽，咽喉肿痛，白喉，风火牙痛，肠炎，痢疾，尿路感染及尿路结石，风湿疼痛，疮疡肿毒，毒蛇咬伤。
Indicated for wind-heat common cold, cough, sore throat, diphtheria, toothache due to wind-fire, enteritis, dysentery, urinary tract infection and urinary stones, rheumatic pain, swollen abscesses, and snake bites.

用法用量 Dosage and Administration

内服：煎汤，10-30g。
Internal administration: Decoction, 10-30g.

禁忌 Contraindications

忌吃酸、辣食物。
Avoid eating sour and spicy foods.

药理作用 Pharmacological Effects

肌松作用。
Muscle relaxation effect.

相关论述 Relevant Discussion

广州部队《常用中草药手册》：“清热解毒，祛风，利水。主治咽喉肿痛，白喉，牙痛，尿路感染及结石，风湿骨痛，蛇伤肿毒。”
Guangzhou Military Region's "Handbook of Commonly Used Chinese Herbal Medicines": "Clears heat, detoxifies, dispels wind, and promotes diuresis. It is used to treat sore throat, diphtheria, toothache, urinary tract infections and stones, rheumatic bone pain, and snake bites."

临床应用 Clinical Applications

1. 治慢性气管炎：凉粉藤、百部各15g，穿心莲12g。水煎2次。每次煎沸后，放置4h以上，过滤，两次滤液浓缩至30-60ml，每日1次顿服，10d为1疗程。（《全国中草药汇编》）

2. For treating chronic bronchitis: 15g of Liangfenteng, 15g of Baibu, and 12g of Chuanxinlian. Decoct in water twice. After each decoction boils, let it sit for over 4 hours, filter it, and concentrate the filtrate twice to 30-60ml. Take it once a day, 10 days as one course of treatment. (From "National Compilation of Chinese Herbal Medicine")

3. 治痢疾：凉粉藤、凤尾草各15g，水煎服。（《全国中草药汇编》）

4. For treating dysentery: 15g of Liangfenteng, and 15g of Fengweicao, decoct in water and take orally. (From "National Compilation of Chinese Herbal Medicine")

5. 治蛇咬伤：用百解藤根适量，米酒浸过药面泡7d。内服10-20ml，每日3次，并用药酒从上而下外搽伤肿处，忌搽伤口。（《广西本草选编》）

6. For treating snake bites: Take an appropriate amount of Baijieteng roots, soak them in rice wine for 7 days. Take 10-20ml orally, three times a day, and apply the medicated wine from top to bottom on the affected swollen area, avoiding application on the wound. (From "Guangxi Compilation of Materia Medica")

附注 Note

与本品同名及功效相似的同属植物毛叶轮环藤Cyclea barbata (Wall.) Miers（亦称银环藤、银不换）。
Cyclea barbata (Wall.) Miers, also known as Silvervine or Yin Bu Huan, is a plant belonging to the same genus with similar medicinal properties and shared nomenclature.

加工炮制 Processing and Preparation

炮制方法：采集加工全年均可采收，去须根或枝叶，洗净，切段，晒干。
The processing method: It can be harvested all year round. Remove the fibrous roots or leaves and stems, wash clean, cut into sections, and dry in the sun.

药材鉴别 Identification of Medicinal Materials

药材性状：根圆柱形，略弯曲，直径0.5-3cm。表面暗褐色，凹凸不平，有弯曲的纵沟、横裂纹和少数支根痕。质硬，断面灰白色，有放射状纹理和小孔。气微，味苦。
Characteristics of medicinal materials: The root is cylindrical, slightly curved, with a diameter of 0.5–3 cm. The surface is dark brown, uneven, with curved longitudinal grooves, transverse cracks, and a few lateral root scars. It is hard in texture; the cross-section is grayish-white with radial patterns and small pores. It has a faint odor and a bitter taste.

植物学信息 Botanical Information

植物种属：防己科植物粉叶轮环藤。
Plant species: Stephania glabra (or Cyclea glabra), a plant of the Menispermaceae (Fangji) family.

形态特征 Morphological Characteristics

粉叶轮环藤：缠绕藤本。根粗壮，圆柱状弯曲，直径1-2cm，外皮灰褐色。老茎具纵向扭曲的粗条纹，小枝纤细，除叶腋或分枝处有簇毛外，余均无毛。单叶互生；叶柄纤细，长1.5-4cm；叶片薄纸质，阔卵状三角形至卵形，长2.5-7cm，宽1.5-5cm，先端渐尖，基部近截平至圆形，全缘，两面无毛或下面被稀疏白色长毛。花序腋生；花单性，雌雄异株；雄花序由小聚伞排列成间断的穗状，花序轴不分枝或有时近基部有短小分枝，纤细，无毛；雄花萼片4或5，分离，长约1mm；花瓣4或5，通常合生成杯状，聚药雄蕊稍伸出；雌花序排列成总状，长达10cm；雌花萼片2，花瓣2，微小，贴生在萼片基部。核果近球形，熟时黄色。花期5-7月，果期7-9月。
Powdered leaf wheel vine (Cyclea glabra): A twining woody vine. Roots are thick, cylindrical, and curved, 1–2 cm in diameter, with gray-brown outer skin. Old stems have longitudinally twisted coarse stripes; young branches are slender, glabrous except for tufted hairs at leaf axils or branch points. Leaves alternate; petioles slender, 1.5–4 cm long; blades thin and papery, broadly ovate-triangular to ovate, 2.5–7 cm long, 1.5–5 cm wide, apex gradually acuminate, base nearly truncate to rounded, margins entire, both surfaces glabrous or sparsely pubescent with white hairs beneath. Flowers axillary, unisexual, dioecious. Male inflorescences are interrupted spikes formed by small cymes; flower axis unbranched or sometimes with short branches near base, slender, glabrous; male flowers with 4 or 5 separate sepals (~1 mm long), 4 or 5 petals usually fused into a cup-shaped structure, stamens united with anthers slightly exserted. Female inflorescences racemose, up to 10 cm long; female flowers with 2 sepals, 2 minute petals adnate at base of sepals. Drupe nearly spherical, yellow when ripe. Flowering from May to July, fruiting from July to September.

分布区域 Distribution Area

分布于江西、福建、台湾、湖南、广东、海南、广西、云南、贵州等地。
Distributed in Jiangxi, Fujian, Taiwan, Hunan, Guangdong, Hainan, Guangxi, Yunnan, Guizhou, and other regions.

生长环境 Growing Environment

生于疏林、石山灌丛、林缘或草丛中。
Found in sparse forests, shrublands on rocky hills, forest margins, or grassy areas.