Description

Postinor is an emergency contraceptive pill that can be used within 72 hours (3 days) after unprotected intercourse or if a used contraceptive method has failed.

It can be used on the following occasions:

No contraceptive was used during intercourse.
The contraceptive was used incorrectly, e.g. if a condom broke, slipped off, or was used incorrectly if a diaphragm changed position, ruptured, broke, or was removed prematurely if concerns about the failure of interrupted intercourse (eg ejaculation in the vagina or on external genitalia).
Postinor contains a synthetic hormone-like active substance called levonorgestrel. It prevents about 85% of expected pregnancies when the tablet is taken within 72 hours (3 days) after unprotected intercourse. Postinor does not prevent a pregnancy every time, but the tablet is more effective the earlier after unprotected intercourse it is taken. It is better to take it within 12 hours than to wait until the third day.

Postinor is assumed to operate by:

prevent ovulation
prevent the sperm from fertilizing an egg that has already been released.
Postinor can only prevent you from getting pregnant if you take it within 72 hours after unprotected intercourse. It does not work if you are already pregnant. If you have had unprotected intercourse after taking Postinor (even if it happens within the same menstrual cycle), the tablet does not have a preventive effect and there is again a risk that you will become pregnant.

Postinor is not intended for use before the first menstrual period.