Levonelle consists of one tablet of a hormone called progestogen which is similar to that contained in the “mini-pill”. It is to be taken as soon as possible after the episode of unprotected intercourse. Here is a guide to the effectiveness of Levonelle, based on how many hours have passed since you had unprotected sex.
Most women do not experience side effects after taking emergency contraception but occasionally women may feel sick or experience a headache for a short time. Most will have a normal period when they would expect it, but sometimes it may come earlier or later than expected. Some women may also experience spotting until their next period. If your period is more than five days late you should see your doctor for a pregnancy test.
The pill works in a variety of ways: