在线查询药品真假的步骤：

1、国家药监局官方网页。 /samr.saic.gov.cn/"target="_blank"title="网页链接">网页链接

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2、在数据查询中，输入药品名称。点击搜索。

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3、如果是假药查不到名称的，以红丹粉为例。然后查不到批号的，都是假药。

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拓展资料：假药的危害

（1）贻误治疗：使用假药，不仅不能治病，而且会掩盖病症，延长病程，常常会因贻误治疗而致病情恶化。 

（2）产生药源性疾病：使用假药，可能产生药源性疾病，严重者可以致残，如耳聋、失明、大脑迟钝、神智不清、偏瘫等。另外孕妇使用假药可致胎儿畸形、痴呆、智商低下，甚至死胎。 

（3）影响发育：儿童使用假药，可致发育迟缓，智商下降。 

（4）中毒：儿童和老年人对一些毒性较大的药品非常敏感，使用某些假药，可致人于死地。