Taking Yohtek may lead to amenorrhea, due to the large amount of hormones it contains, it can interfere with normal endocrine levels, and its main side effects are nausea, vomiting, dizziness, menstrual cycle disorders, amenorrhea, infertility and so on. It is not recommended as a regular contraceptive method and should not be taken frequently within a short period of time, and should be used no more than three times a year and once a month at most, and the drug is only effective for sexual intercourse within 72 hours before taking it, and other safety measures need to be taken for sexual intercourse again. Usually pay attention to maintain personal hygiene, reasonable arrangement of work and rest time, without a physician’s diagnosis, not blindly abuse drugs, eat less cold, cold, spicy stimulating food.