Taking emergency contraceptive pills once is usually not a big problem, but there may be adverse reactions such as menstrual changes, headache and dizziness, nausea and vomiting. Moreover, the contraceptive effect of emergency contraceptive pills is not 100%, and contraceptive failure may still occur after taking them.
The commonly used emergency contraceptive pill is levonorgestrel tablets. It is usually taken orally within 72 hours after unprotected sex. The earlier the pill is taken, the more effective it is in preventing pregnancy. Emergency contraceptive pills contain a large amount of progesterone and may cause irregular menstruation, nausea, vomiting, breast tenderness, headache and other symptoms after use, and should not be taken frequently.
Emergency contraceptive pills should not be used as regular contraceptive pills, and are forbidden for those who are suspected to be pregnant or suffering from breast cancer, genital cancer, abnormal liver function, cardiovascular and cerebral vascular diseases, mental depression, and women over 40 years of age.
The above drugs should be used in a standardized manner according to the doctor’s instructions, and should not be used blindly by oneself to avoid adverse consequences.