苦茶叶，中药名。为木犀科植物日本女贞LigustrumjaponicumThunb.的叶。我国各地有栽培。具有清肝火，解热毒之功效。常用于头目眩晕，火眼，口疳，齿䘌，无名肿毒，水火烫伤。
Ku-cha-ye, name of Chinese Medicinal Material. the leaves of Ligustrum japonicum Thunb., a plant of the Oleaceae family, is cultivated in various regions of China. It has the functions of clearing liver fire and relieving heat toxins. It is often used for dizziness, red eyes, oral ulcers, toothache, unidentified swellings, and scalds.

功效作用 功能
Efficacy and Functions

清肝火，解热毒。主治
Clear liver fire, resolve heat toxins. Mainly used for治疗。

头目眩晕，火眼，口疳，齿?，无名肿毒，水火烫伤。用法用量
Dizziness, eye inflammation, mouth ulcers, toothache, unidentified swelling and toxicity, scalds. Dosage and usage.

内服：煎汤，10-15g；代茶饮；熬膏。外用：适量，熬膏贴、煎水洗、研末撒或调敷。药理作用
Internal use: decoction, 10-15g; can be taken as tea; can be made into paste. External use: apply appropriate amount as paste, decoction for washing, powder for sprinkling or applying. Pharmacological actions.

1、对心血管的作用。2、对血脂代谢及动脉粥样硬化的影响：抑制和减轻动脉粥样硬化。相关论述

1. Effects on the cardiovascular system.2. Effects on blood lipid metabolism and atherosclerosis: inhibition and alleviation of atherosclerosis. Relevant discussions.

1、《贵州民间药物》：“清热解毒。”2、《贵州草药》：“平肝。治高血压头目眩晕。”3、《贵州民间方药集》：“清凉解热，利尿。”临床应用 相关配伍

1. "Folk Medicine of Guizhou: Clearing heat and detoxifying."2. "Guizhou Herbal Medicine: Soothing the liver. Treating hypertension with dizziness and vertigo."3. "Collection of Folk Remedies in Guizhou: Cooling and reducing fever, diuretic effects." Clinical applications and related combinations.

1、治高血压头目眩晕：苦丁茶叶15g。泡开水当茶常饮。（《贵州草药》）2、治火眼初起：苦丁茶叶2.5-3kg，熬成浓汁，过滤后，再继续熬成膏，用此膏摊于纸上，外贴两眼，每晚1次，3-4次即愈。（《贵州民间药物》）3、治小儿口中发热糜烂：苦丁茶膏调温开水，日服3次。（《贵州民间药物》）加工炮制 采收加工

1. To treat dizziness caused by hypertension: Use 15g of bitter tea leaves. Brew with boiling water and drink regularly as tea. (From "Guizhou Herbal Medicine")2. To treat early symptoms of eye inflammation: Use 2.5-3kg of bitter tea leaves, boil to make a concentrated solution, filter it, then continue boiling to make a paste. Apply this paste on paper and place it on both eyes, once every night, for 3-4 times until recovery. (From "Guizhou Folk Medicine")3. To treat oral ulcers and fever in children: Mix bitter tea paste with warm water, and take it orally three times a day. (From "Guizhou Folk Medicine") Processing and preparation: Harvest and process the ingredients.

全年或夏、秋季采收，鲜用或晒干。药材鉴别 药材性状
Harvest all year round or in summer and autumn, use fresh or dry in the shade. Identification of medicinal materials and their properties.

叶多破碎，部分数片粘合，呈绿褐色、茶褐色或棕褐色。完整叶片展平后呈椭圆形、卵状椭圆形至卵状披针形，长4-8cm，宽1.5-4cm，先端渐尖，基部楔形或圆形，全缘，上面平滑光亮，下面主脉突起；叶柄长0.3-1.2cm。革质，质脆。微具焦糖气，味苦、甜。植物学信息 植物种属
The leaves are mostly broken, with some pieces sticking together, presenting green-brown, tea-brown, or brown colors. When the intact leaves are spread out, they are elliptical, ovate-elliptical to ovate-lanceolate, 4-8cm long and 1.5-4cm wide, gradually pointed at the apex, with a wedge-shaped or round base, entire margin, smooth and shiny upper surface, and prominent main veins on the lower surface; the petiole is 0.3-1.2cm long. The leaves are leathery and brittle, with a slightly burnt smell, bitter and sweet taste. Botanical information about the plant species.

木犀科植物日本女贞。形态特征
Japanese privet, a plant in the Oleaceae family. Morphological characteristics.

日本女贞，又名日本毛女贞。大型常绿灌木，高3-5米，无毛。小枝灰褐色或淡灰色，圆柱形，疏生圆形或长圆形皮孔，幼枝圆柱形，稍具棱，节处稍压扁。叶片厚革质，椭圆形或宽卵状椭圆形，稀卵形，长5-8（-10）厘米，宽2.5-5厘米，先端锐尖或渐尖，基部楔形、宽楔形至圆形，叶缘平或微反卷，上面深绿色，光亮，下面黄绿色，具不明显腺点，两面无毛，中脉在上面凹入，下面凸起，呈红褐色，侧脉4-7对，两面凸起；叶柄长0.5-1.3厘米，上面具深而窄的沟，无毛。圆锥花序塔形，无毛，长5-17厘米，宽几与长相等或略短；花序轴和分枝轴具棱，第二级分枝长达9厘米；花梗极短，长不超过2毫米；小苞片披针形，长1.5-10毫米；花萼长1.5-1.8毫米，先端近截形或具不规则齿裂；花冠长5-6毫米，花冠管长3-3.5毫米，裂片与花冠管近等长或稍短，长2.5-3毫米，先端稍内折，盔状；雄蕊伸出花冠管外，花丝几与花冠裂片等长，花药长圆形，长1.5-2毫米；花柱长3-5毫米，稍伸出于花冠管外，柱头棒状，先端浅2裂。果长圆形或椭圆形，长8-10毫米，宽6-7毫米，直立，呈紫黑色，外被白粉。花期6月，果期11月。生长环境
Japanese privet, also known as Japanese wax privet, is a large evergreen shrub that grows to 3-5 meters in height and is hairless. Its small branches are gray-brown or light gray, cylindrical, with scattered round or elongated round pores. The young branches are cylindrical, slightly angular, and slightly flattened at the nodes. The leaves are thick and leathery, elliptical or broadly ovate-elliptical, occasionally ovate, 5-8 (-10) cm long and 2.5-5 cm wide, with a sharp or gradually pointed tip, a wedge-shaped to broadly wedge-shaped or round base, flat or slightly curled leaf margins, dark green and shiny upper surface, yellow-green lower surface, inconspicuous glandular dots, hairless on both sides, sunken upper midrib and raised lower midrib, reddish-brown, 4-7 pairs of lateral veins, raised on both sides; petioles are 0.5-1.3 cm long, with deep and narrow grooves on the upper surface, and hairless. The cone-shaped inflorescence is hairless, 5-17 cm long, nearly as wide as long or slightly shorter; the inflorescence axis and branch axis are angular, with secondary branches up to 9 cm long; flower stalks are very short, not exceeding 2 mm; small bracts are lanceolate, 1.5-10 mm long; calyx is 1.5-1.8 mm long, with a nearly truncate or irregularly toothed tip; corolla is 5-6 mm long, corolla tube is 3-3.5 mm long, lobes are nearly equal in length to the corolla tube or slightly shorter, 2.5-3 mm long, slightly inwardly folded at the tip, helmet-shaped; stamens extend outside the corolla tube, filaments are nearly equal in length to the corolla lobes, anthers are oblong, 1.5-2 mm long; pistil is 3-5 mm long, slightly extending outside the corolla tube, with a rod-shaped stigma, shallowly 2-lobed at the tip. The fruit is oblong or elliptical, 8-10 mm long and 6-7 mm wide, erect, purple-black, and covered with white powder. It blooms in June and fruits in November.

我国各地有栽培。原产日本。
Cultivation can be found throughout China. Originally from Japan.