Use emergency contraception before or after sex?

Question
Hello doctor, 1 pill type of birth control pill, will you use it before or after sex?
Hoang Duc Manh (Hanoi)
Hello doctor. If I'm using 1 pill, should I take it before or after sex? Thank you doctor.
Anonymous question
Hello doctor. Can I use birth control pills after sex?
Anonymous question
Doctor, I take emergency contraception posinibgt 1 5 hours before sex, so I can prevent pregnancy.
Anonymous question
Hello doctor. Doctor, I've had sex for less than 48 hours, but if I use 1 pill, does it have any effect? Is 1 pill enough? Looking forward to consulting your doctor. Thank you.
Ngan (2000)
Hello doctor. Doctor, if I take the daily and emergency contraceptive pill before having sex, is it effective in preventing pregnancy? Looking forward to consulting your doctor. Thank you.
Dinh Thi Thuy Trang (1999)
Hello doctor. I have sex and take oral contraceptive pills 1 pill 3 days later if I have sex again, can I still take birth control pills? Thank you
Anonymous question
Hello doctor, can you give me a birth control pill 1 pill to take before or after sex? Looking forward to consulting your doctor. Thank you.
Anonymous question
Hello doctor. May I ask, is it okay to take birth control pills after sex? Looking forward to consulting your doctor. Thank you.
Anonymous question
Answer
Hello! The single-pill is an emergency contraceptive pill, about the use of the emergency contraceptive pill within 72 hours of having sex you should take the emergency contraceptive pill as soon as possible. The sooner the medication is taken, the more effective it is. If using the drug after 72 hours, the contraceptive effect will be significantly reduced, many cases of contraception failure.
However, according to medical experts, emergency contraception should not be overused. Do not use more than 2 doses / month and more than 3 times / year to protect your health, especially fertility.
Thank you for submitting your question to Vinmec Health System. Best regards!