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Home > TCM > Chinese Herbs > Heat-Clearing
土大黄

土大黄

用量9~15克,水煎服。外用适量。常用于肺脓疡,肺结核咯血、衄血、痈肿疮毒、湿症,跌打损伤、便秘及烫伤等症。
Sexuality性凉,味苦、辛
Recycled心经、肺经
Effectiveness清热解毒,止血,祛瘀,通便,杀虫
Governance用量9~15克,水煎服。外用适量。常用于肺脓疡,肺结核咯血、衄血、痈肿疮毒、湿症,跌打损伤、便秘及烫伤等症。
Medical advice

Pharmaceuticals

土大黄,金不换、止血草、化血莲、红筋大黄、吐血草、箭头草、救命王、野蒿荬、广角、大晕药、包金莲、牛大黄、血当归、萝卜奇。。【功效与作用】清热解毒,止血,祛瘀,通便,杀虫。属清热药下分类的清热解毒药。;【临床应用】用量9~15克,水煎服。外用适量。常用于肺脓疡,肺结核咯血、衄血、痈肿疮毒、湿症,跌打损伤、便秘及烫伤等症。;【植物形态】多年生草本,高约1米。主根粗大肥厚,黄色。茎直立,紫绿色,有多数纵沟。基生叶卵形至卵状长椭圆形,长20~30厘米,宽10~20厘米,先端钝或钝圆,基部心形,下面有小瘤状突起,有长叶柄,托叶鞘膜质,早落;茎生叶卵状披针形,向上渐小,叶脉红色。花成簇集成圆锥状总状花序;花被片6,淡绿色,2轮,内轮花被片圆心形,每边具4~7齿;雄蕊6;子房三角卵状,花柱3,柱头毛状。瘦果卵形,有3棱,褐色,包于增大的内轮花被内。花期5~6月,果期6~7月。;【产地分布】土大黄原植物多生于山脚或山坡近水处。分布于江苏、安徽、浙江、江西、河南、湖南、河北、山东等地。;【采收加工】秋季挖取根部,洗净泥土及杂质,切片,晒干或鲜用。;【药材性状】土大黄根及根茎呈类圆锥形,长15~17厘米,根茎直径达3厘米,根直径为1.5~1.8厘米。全体棕红色至灰棕色。根茎部顶端有茎基残基,并具有棕色鳞片状物及须毛状纤维。根部常有分枝,表面具多数纵皱纹,表面散有横长皮孔样疤痕及点状须根痕。质硬,切断面黄色,有棕色环纹及放射状纹理。气微,味微苦。;【使用注意】尚不明确。