Taking the emergency contraceptive pill is generally contraceptive, but not 100%.
The main ingredient of the emergency contraceptive pill is levonorgestrel, a progestin drug that can delay and stop the release of egg cells, thus playing a contraceptive role, emergency contraceptive pills on the time of taking the pill has regulations, applicable within 72 hours of sexual intercourse, it is generally recommended to take it as early as possible, the earlier you take it, the better the effect of contraception is also better.
Taking emergency contraceptive pills can reduce the chance of pregnancy by 75% to 89%, but this method of contraception is not 100% effective, and there are 1.2% to 2.1% of women who may become pregnant.
Levonorgestrel may have adverse reactions, mainly changes in menstruation, manifested as early or delayed menstruation, and nausea, vomiting, breast swelling and pain and other uncomfortable symptoms, and some may have abnormal uterine bleeding after taking the drug.
It should not be used by women who are pregnant or suspected of being pregnant, and is contraindicated in women with breast cancer, cancer of the reproductive organs, abnormal liver function, and women over 40 years of age.
The success rate of emergency contraceptive pills is not 100%, even after the use of the drug should pay close attention to the changes in menstruation, if there is a delay in menstruation should be timely consultation, taking the drug may have adverse effects, should be used in accordance with medical advice.