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地不容的毒性与使用注意

ว 2026-09-09 23:09:26ที่ 使用注意เ 中国国际医疗服务系统
地不容为防己科千金藤属植物地不容的干燥块根,是香港卫生署中医药规管办公室重点监测的有毒中药材之一。地不容味苦,性寒,有大毒,归肝、胃经。功能涌吐痰食、截疟、解疮毒。主治疟疾、食积腹痛、痈肿疔毒。剂量:内服煎汤1.5~3g;研末0.5~1g。外用适量,鲜品捣敷或研末敷。毒性与不良反应:地不容含多种异喹啉类生物碱,过量服用可引起中毒,表现为恶心、呕吐、腹痛、腹泻、头晕、头痛、嗜睡、血压下降、心率减慢,严重者可致呼吸抑制、昏迷甚至死亡。地不容有肝毒性,长期或过量使用可能导致肝细胞损伤,表现为转氨酶升高、黄疸等症状。中毒解救:立即停药,催吐、洗胃、导泻,静脉输液促进毒物排泄,对症治疗呼吸抑制和心律失常。使用注意:①孕妇忌服。②体弱者忌服。③内服必须严格控制剂量,不可过量久服。④不宜与西药镇静催眠药同用,以免加重中枢抑制。⑤肝功能不全者慎用。⑥外用时避免接触正常皮肤和黏膜。⑦地不容必须经过炮制后方可内服,生品毒性更大。⑧地不容与山乌龟(同属多种植物)常混用,需注意鉴别。
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