Yuktin emergency contraceptive pill has two sizes, one is 0.75mg, is two tablets, this drug is to take one after 12 hours and then take the second tablet. If it is a one-piece package, it is 1.5mg a piece, after taking a piece can. However, this drug must be applied within 72 hours after sex, if you eat more than 72 hours, it will not work, and the earlier you eat, the better the effect. It is best to take it on an empty stomach and not eat or drink within two hours after taking it to avoid reducing the effectiveness of the drug. The success rate of the emergency contraceptive pill is 85-90%, so not everyone who takes this pill will be successful.