Unverified88% confidenceCautionTime unknown
维生素A补充剂治疗干眼仅对确诊维A缺乏者有效(如夜盲、结膜干燥症),普通人长期高剂量(>3000μg RAE/日)补充有肝毒性和致畸风险,孕妇尤其禁用
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified复配维生素A/E对护眼有协同作用,但孕妇及每日已服复合维生素者需警惕维生素A过量(上限3000μg RAE/天),叠加多种含VA补剂有中毒风险87% similarUnverified维生素A补充需警惕过量:视黄醇形式每日上限约3000μg(成人),若已服其他复合维生素再叠加护眼A剂易过量,孕妇尤其危险;选购看是否为β-胡萝卜素形式(相对安全)84% similarUnverified复合维生素中脂溶性维生素A过量(>3000mcg RAE/天)长期服用有肝毒性和骨质风险,孕妇过量A还有致畸风险,选购时须核查A含量上限77% similarUnverified选购治疗性维生素A(用于夜盲症、干眼症等)应选择药准字(国药准字)产品并遵医嘱,保健性补充可选保健食品(蓝帽子/膳食补充剂);药准字产品剂量标准更受监管,适合确诊缺乏者76% similarUnverified标注'护眼'但主要成分是维生素A/胡萝卜素的产品,A属脂溶性易蓄积,长期每日饮用叠加其他补剂有过量风险,孕妇尤其需注意维生素A上限76% similar
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