Details
How effective is Levonorgestrel?
The sooner Levonorgestrel is taken after unprotected sex, the better. It is considered to be:
- 95% effective if taken within 24 hours of unprotected sex
- 85% effective if taken within 25-48 hours
- 58% effective if taken within 49-72 hours
Taking Levonorgestrel 72 hours (3 days) after unprotected sex may not leave you as well-protected as you hoped.
A 2017 review estimated that 0.6% to 2.6% of women who take Levonorgestrel after unprotected sex will become pregnant.
What is Levonorgestrel?
Levonorgestrel is a form of emergency contraception, commonly known as the Morning After Pill. Levonorgestrel is taken by a woman after unprotected sex to prevent pregnancy. Levonogestrel should be taken as soon as, and no longer than 72 hours (3 days), after unprotected sex for it to be effective.
How does Levonorgestrel work?
Levonorgestrel mimics the natural female sex hormone progesterone. Levonorgestrel prevents the release of the egg from the ovary so that fertilisation does not take place.
What is the difference between Levonorgestrel and Levonelle?
Levonelle and Levonorgestrel are the same medication. They both work the exact same way and are equally as effective. The only difference is that Levonelle is the specific brand of Levonorgestrel whilst Levonorgestrel is a generic medication. This means Levonorgestrel is generally cheaper than Levonelle as you are not paying for the brand.