事后多久吃紧急避孕药是有效的

来自周齐医生的专业解答，快打开看看是否又获得了新的知识点～

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https://m.baidu.com/bd_page_type=1/baiduid=9BAAC8143CF38E4B3C235C6A77D9075C/t=mip/tc?ct=54&lid=41825781398359&module=mip&cst=112&clk_extra=%7B%22pageid%22%3A%2241825781398359%22%2C%22searchID%22%3A%2241825781398359%22%2C%22nPageID%22%3A%2241825781398359%22%2C%22mip_logid%22%3A%2241825781398359%22%2C%22masterpage_type%22%3A%22self%22%2C%22originalUrl%22%3A%22https%3A%5C%2F%5C%2Fm.120ask.com%5C%2Faskg%5C%2Fmip_detail%5C%2F62060644%22%2C%22srcid%22%3A%22landingpage%22%2C%22name%22%3A%22A%5Cu533a%5Cu6b63%5Cu6587%5Cu4e0b%5Cu65b9%5Cu4e2d%5Cu95f4%5Cu5c55%5Cu5f00%5Cu6309%5Cu94ae%22%2C%22id%22%3A%22new_expand_content%22%7D&tcreq4log=1

快速问医生

病情分析：避孕药在房事后三天内服用都是有效的，但是一般认为在房事后越早开始使用，效果会越好。市面上的很多紧急避孕药都是可以的。需要注意的就是在服用药物的时候，

周齐

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