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海桐皮的药材性状与炮制方法

ว 2026-09-09 23:09:11ที่ 药材炮制เ 中国国际医疗服务系统
海桐皮,《中药炮制》:来源为豆科植物刺桐或乔木刺桐的干燥树皮。产地:广东、湖北等省。采收季节:春季采收。炮制方法:清水洗净,冬春季用热水抢洗,夏秋季用温水抢洗,捞起滤干水份,上盖湿布,润1夜,润透后,取出切横丝片3分厚,晒干或烘干。用量:9至15克。贮存:装木箱内,加盖。《中药学》:药用为豆科乔木刺桐或芸香科乔木叶花椒、朵椒的干燥树皮。性味与归经:辛、苦,平。归肝、肾经。功效:除湿利痹,清热化湿。临床应用:1.用于风湿痹痛。本品功能祛风湿,通经络,主要适用于下肢关节痹痛以及腰膝疼痛等症,临床常配合牛膝、薏苡仁、五加皮等药同用。2.用于湿热下注,脚膝疼痛。本品又能清热化湿,用治湿热下注、脚膝疼痛的病症,可配合萆薢、木通等药同用。此外,本品外用治疥癣,可配合川槿皮、蛇床子、大黄,浸酒外搽。处方用名:海桐皮、赤桐皮、浙桐皮(洗净,晒干,切片用)。一般用量与用法:一钱至三钱,煎服。外用适量。方剂举例:海桐皮散(《证治准绳》):海桐皮、熟地黄、牡丹皮、牛膝、山茱萸、补骨脂。治手足拘挛。文献摘录:《本草求真》:海桐皮,能入肝经血分,祛风除湿,及行经络,以达病所。《本经逢原》:海桐皮一名刺桐,苦平无毒。海桐皮能行经络达病所。治风湿腰脚不遂,血脉顽痹,腿膝疼痛,赤白泻痢,及去风杀虫。虫牙风痛,煎汤漱之。疳蚀疥癣,磨汁涂之。目赤肤翳,浸水洗之。此药专去风湿,随证入药服之。无风湿者勿用。海桐皮的药材性状:干燥树皮呈半筒状或板片状,长约30至60cm,厚1至2mm。外表面灰棕色或灰黑色,有稀疏的纵裂纹及黑色钉刺(乳头状突起),钉刺长圆形,高约5mm,顶端锐尖,基部直径约1cm,有时已被除去而留下圆形疤痕。内表面黄棕色或红棕色,较平滑,有细纵纹。质坚韧,不易折断,断面纤维性。气微香,味苦。以皮薄、带钉刺者为佳。海桐皮的显微鉴别:树皮横切面:木栓层由多列木栓细胞组成,细胞壁增厚,木化。皮层较窄,细胞类圆形,含草酸钙方晶。韧皮部宽广,射线宽1至3列细胞;韧皮纤维束与韧皮薄壁细胞相间排列,纤维壁极厚,木化。薄壁细胞含淀粉粒和草酸钙方晶。
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