The generic name of Yuketin is levonorgestrel tablets. Levonorgestrel tablets are emergency contraceptives, there is no specific value to judge how many months of menstruation are affected by taking them at the age of 46, most of them will affect the current month’s menstruation. Generally speaking, if a woman over 45 years old takes levonorgestrel tablets, it is possible to cause menstrual disorders, abnormal vaginal bleeding and other phenomena. Because levonorgestrel tablets contain a large number of estrogen and progesterone, after taking the drug may affect the body’s hormone levels, menstrual disorders, usually can be manifested as the month of menstruation early or delayed. If there are many cases of delayed or early menstruation, then you need to be alert to whether there is a menstrual disorder or contraceptive failure, you need to consult a doctor in time to identify the cause. 46-year-old women are recommended to take levonorgestrel tablets under the guidance of a doctor, to avoid taking the drug blindly, and if there are obvious abnormalities after taking the drug, it is recommended to consult a doctor for treatment.