Unverified85% confidenceDecision RuleTime unknown
改善日间焦虑/专注不困倦推荐100-200mg单次剂量,改善入睡困难推荐200-400mg睡前服用;单次超过400mg并无额外助眠增益,反而增加个体嗜睡副作用风险
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Unverified日间抗焦虑/专注需求选100-200mg即可,且此剂量不会引起嗜睡;助眠场景需200-400mg,单次不建议超过400mg(研究安全剂量上限约400-900mg/天)91% similarUnverified部分口碑建议白天也可服用以缓解焦虑,不会引起嗜睡,因此200mg剂量既可睡前用也可日间用于减压89% similarUnverified改善焦虑失眠可选含缬草提取物(Valerian)的产品,睡前有效剂量300-600mg,但其起效需连续服用2-4周,并非速效镇静,购买时应看是否标注缬草酸含量≥0.8%88% similarUnverified250mg单粒含量属于中等剂量,用户反馈对轻度焦虑/入睡困难有帮助,但重度失眠或焦虑者普遍反映效果有限,不应作为药物替代88% similarUnverified日常放松抗压推荐单次100-200mg,睡眠改善需200mg以上,认知专注(配咖啡因)常用200mg;超过400mg单次并无更强证据且可能引起头晕87% similar
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