Yuktin is an emergency contraceptive pill that can be taken orally within 72 hours after intercourse. Of course, the sooner you take it orally, the better. Yutin is a contraceptive after the fact, it can only play a certain effect on contraception after intercourse, but can not be used as a contraceptive beforehand. So after taking oral yutin, if you need to have intercourse again, you must take the condom, and then take oral yutin must also pay attention to the time, you must choose to fasting or 2 hours after meals before you can take oral, so that it will not reduce the effect of emergency contraceptive drugs. After taking the oral contraceptive pill, you should not eat any food or water within 2 hours, so as not to affect the effect of the emergency contraceptive pill. After intercourse, 12 days later, you must buy an early pregnancy test to rule out the chance of conception, because Yutin contraceptive drugs, it is not 100% contraception, there will be a 20% chance of failure.