It is best not to eat or drink anything within 2 hours before or after taking the pill, and to take the pill with a small amount of warm water, as side effects such as nausea and vomiting are likely to occur after taking the pill. If you eat too much, nausea and vomiting can easily occur when choking. Generally eating does not have much effect on the effect of the drug, if it is already eaten, but nausea and vomiting after taking the drug is not obvious does not have much effect. Especially when you take emergency contraceptive pills, it is usually best to take them within 72 hours after sex, and the earlier you take them, the better the effect. Twelve hours after taking the pill, take another oral tablet, this cycle is no longer recommended to have sex, unless the use of condoms contraception.