Levonelle is a type of emergency contraception known as a morning-after pill. Despite being known as the ‘morning after pill’ it can be effective at preventing pregnancy for up to three days after unprotected sex, though the sooner it is taken the more effective it is likely to be.
Levonelle is most effective when taken within 12 hours of unprotected sex, although it can be effective for up to 72 hours after sex. You should bear in mind, however, that this effectiveness decreases over time.
Levonelle is thought to prevent:
- up to 95% of pregnancies if taken within 24 hours
- up to 85% of pregnancies if taken within 48 hours
- up to 58% of pregnancies if taken within 72 hours