72小时避孕药事后有用吗

来自刘浩医生的专业解答，快打开看看是否又获得了新的知识点～

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快速问医生

病情分析：紧急避孕药只对前次性生活起保护作用的。但是一般情况下来讲，刚吃完药12小时内还有作用的。超过了12小时，今天还要再吃上的。以后一定要注意采取避孕措施。

刘浩

主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医