Neosporin and Yohtex are both emergency contraceptives that can be taken orally within 72 hours of unprotected intercourse. Neosporin levonorgestrel drops are about 99% effective, and may be more effective if you take 1 pill the first time, and then 1 pill 12 hours later, the sooner you take it, the better. The contraceptive effect of Yutin will reach about 92%, judging from the contraceptive effect of the two, the contraceptive effect of New Sno levonorgestrel drops is better. But no matter which kind of emergency contraception will have a certain chance of failure, so 12 days after intercourse to buy early pregnancy test paper test, to rule out the possibility of conception. Emergency contraceptive pills should not be taken orally for a long period of time because they can cause early or late menstruation and may even cause abnormal bleeding.