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紫苑的功效与主治

ว 2026-09-10 09:16:04ที่ https://www.dayi.org.cn/cmedical/1155978.htmlเ admin

紫苑原名紫菀,为菊科植物紫菀的干燥根及根茎,味辛、苦,性温,归肺经。其核心功效为润肺下气、消痰止咳。在临床应用中,紫苑主要用于痰多喘咳、新发或长期咳嗽、久咳痰中带血等症,是中医治疗咳嗽的常用药物。紫苑辛散苦降,温润不燥,能开泄肺郁、降逆定喘、化痰止咳,无论外感内伤、寒热虚实之咳嗽均可应用。对于风寒犯肺所致的咳嗽气喘、痰多清稀,紫苑能疏风散寒、化痰止咳,常与荆芥、桔梗、百部等配伍,如止嗽散。对于肺热咳嗽、痰黄黏稠,紫苑可与黄芩、桑白皮、瓜蒌等配伍。对于肺虚久咳、痰中带血,紫苑能润肺止咳,常与阿胶、百部等配伍。对于寒饮伏肺、咳嗽气喘、喉中痰鸣,紫苑可与麻黄、细辛、干姜等配伍,如射干麻黄汤。紫苑还能通利小肠,可用于小便不利。《神农本草经》记载其"主咳逆上气,胸中寒热结气"。

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