Morning After Pill (Within 3 days)

Levonorgestrel 1.5g tablet (Pack of 1)

Clinically effective at preventing pregnancy when taken within 72 hours (3 days) of unprotected sex


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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.


How do I take Levonorgestrel?

Swallow one Levonorgestrel tablet whole with water.

Levonorgestrel should be taken as soon as, and no longer than 72 hours (3 days), after unprotected sex for it to be effective. The effectiveness of Levonorgestrel to prevent pregnancy decreases over time.

If you vomit or have diarrhea within 3 hours of taking the tablet, it may not have been absorbed properly into your system and the effectiveness may be compromised. Seek urgent professional advice and obtain additional emergency contraception.

Having unprotected sex after taking Levonelle will not prevent pregnancy.

Can I get pregnant after taking Levonorgestrel?

In a small number of cases, Levonorgestrel is not effective and some women will become pregnant.

Levonorgestrel is not a form of regular contraception. You can still get pregnant if you have unprotected sex after taking Levonorgestrel.

How often can I take Levonorgestrel?

You can Levonorgestrel more than once in a menstrual cycle. However, it should not be taken daily as a form of regular contraception.

See our page for our Contraceptive Mini Pill should you require regular contraception.

Potential Side Effects

Please read the enclosed Patient Information Leaflet carefully before use.Some common side effects (1 in 10 women) of Levonorgestrel include nausea (feeling sick), headache, abdominal pain, tiredness, temporary irregular bleeding.

Some people may also be allergic to the medication and come up with a skin rash, itching, swelling around the lips and face, difficulty breathing or swallowing. If this happens, stop the medication immediately and seek medical attention.

If you were to experience the following, contact your doctor immediately to rule out pregnancy:

  • Menstrual period delayed by more than 5 days
  • Abnormal bleeding occurring at the expected date of menstrual period
  • Pregnancy is suspected for any reason