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海芋的毒性与炮制方法

ว 2026-09-09 23:09:29ที่ 使用注意เ 中国国际医疗服务系统
海芋为天南星科海芋属植物海芋的根茎,味辛,性寒,有大毒,归心、肝、脾经。海芋全株有毒,以茎干毒性最大,其汁液含有草酸钙针晶、皂苷、生物碱等毒性成分,皮肤接触可致瘙痒、麻木、红肿,误食可致口舌肿胀、流涎、呕吐、腹痛、腹泻,严重者可致喉头水肿、窒息、心脏麻痹而死亡。因此海芋内服必须经过严格炮制并久煎。炮制方法:①去皮洗净,切成薄片,与大米同炒至米焦黄色,去米,久煎2小时以上方可内服。②或用清水浸泡数日,每日换水,再久煎。海芋的药用价值在于清热解毒、行气止痛、散结消肿,主治流感、感冒、腹痛、肺结核、风湿骨痛、疔疮、痈疽肿毒、疥癣、虫蛇咬伤等。针对痈疽肿毒大疮,可将其切片后火焙热外敷,凉透后及时更换。现代研究表明海芋具有抗菌、抗病毒、抗肿瘤、降血糖、降血脂等作用,在鼻咽癌等肿瘤的辅助治疗中也有应用。使用注意:孕妇忌服,不宜生食,内服必须久煎,外用不可敷正常皮肤。
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