There are two main types of morning after pill tablets on the market in the UK.


ellaOne is considered to be a highly effective form of emergency contraception. It’s 95% effective when used within 120 hours (5 days) of intercourse.


Levonelle diminishes in effectiveness over time. Taken up to 12 hours after unprotected sex, it is 95% effective, but only 58% effective after 48 to 72 hours (3 days).

Although all of our content is written and reviewed by healthcare professionals, it should not be substituted for or used as medical advice. If you have any questions about your health, please speak to your doctor.

Authored Jan 10, 2022 by Joseph Issac, MPharm
Reviewed Jan 10, 2022 by Prabjeet Saundh, MPharm