Unverified90% confidenceCautionTime unknown
硒的安全窗口较窄，长期过量补硒可能导致硒中毒（脱发、指甲脆裂等），服用前建议先通过血硒检测确认是否缺硒
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified硒过量可导致脱发、指甲脆裂、胃肠不适及神经症状，长期补充200mcg应定期监测血硒水平，不宜在无医嘱下自行加量76% similarUnverified在无明确缺乏证据（如未做血清锌/硒检测）时不建议长期高剂量补硒，硒过量可致脱发、指甲变脆、胃肠不适甚至神经损伤73% similarUnverified地高辛治疗窗极窄，用于房颤或需正性肌力+减慢心率的病例时必须监测血药浓度（目标0.5-1.0 ng/mL），中毒会引起厌食呕吐和致命性心律失常66% similarUnverified片剂体积偏大，吞咽困难或老年用户可能需掰开或改选粉剂/胶囊形式的镁补充剂65% similarUnverified片剂体积偏大，吞咽困难者反馈服用体验不佳，可考虑粉剂或小粒胶囊形式的镁补充剂替代65% similar
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