Levonorgestrel is an emergency contraceptive that is only effective for sexual intercourse that occurs within 72 hours before taking the pill.
Women can take levonorgestrel if they do not use contraception during intercourse or if contraception fails, but it is only effective for sexual intercourse that occurs within 72 hours before taking the pill, and the earlier you take it, the better the contraceptive effect will be. If you vomit within 2 hours of taking the pill, take a replacement tablet immediately. If you have sex again after taking the pill, it will not be effective.
Levonorgestrel may cause early or delayed menstruation and other adverse effects such as nausea, vomiting, dizziness, breast tenderness, etc. Generally, it does not require treatment and can be relieved on its own after 24 hours, if the symptoms are more serious, it is necessary to consult a physician for assistance.
Levonorgestrel is contraindicated in those who are suspected to be pregnant or have been pregnant, those who have allergic reactions to this drug, women over 40 years old, those with abnormal liver function, those who suffer from hypertension, cardiovascular disease, diabetes and mental depression.
The dosage of levonorgestrel should be consulted with a physician before using the drug, not self-medication. If the above adverse reactions occur after taking levonorgestrel, and the symptoms are more serious and cannot be relieved, you should go to the hospital in time.