Levonelle 1500 is an emergency contraceptive tablet that can be used within 72 hours (3 days) of unprotected sex or if your usual contraceptive method has failed.

An alternative emergency contraception which can be taken up to 5 days is also available.

Levonelle contains a synthetic hormone like substance called levonorgestrel. It prevents about 84% of expected pregnancies when you take it within 72hrs of having unprotected sex. It will not prevent a pregnancy every time and is more effective if you take it as soon as possible after unprotected sex. It is better to take it within 12hrs rather than delay until the third day.

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Like any other prescription medication you must consult a doctor before using it.

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How does Levonelle work?

Levonelle is works by:

  • stopping your ovaries from releasing an egg;
  • preventing sperm from fertilising any egg you may have already released; or
  • stopping a fertilised egg from attaching itself to your womb lining.

Levonelle can only prevent you becoming pregnant if you take it within 72hrs of unprotected sex. It does not work if you are already pregnant. If you have unprotected sex after taking Levonelle, it will not stop you from becoming pregnant.

Read the Patient Information Leaflet

Possible Side Effects

Like all medicines, Levonelle 1500 can cause side effects, although not everybody gets them.

Very common side effects (affects more than 1 user in 10):

  • Feeling sick (nausea)
  • You might have some irregular bleeding until your next period
  • You might have lower abdominal pain
  • Tiredness
  • Headache

Common Side effects (affects 1 to 10 users in 100):

  • Being sick (vomiting). If you are sick, read the section ‘What to do if you are sick’ (vomit) (see page 3).
  • Your period might be different. Most women will have a normal period at the expected time, but some may have their period later or earlier than normal. You might also have some irregular bleeding or spotting until your next period. If your period is more than 5 days late or is unusually light or unusually heavy, you should contact your doctor as soon as possible.
  • You might have tender breasts, diarrhoea, feel dizzy after taking this medicine.

Very rare side effects (affects less than 1 user in 10,000):

  • rash, urticaria, pruritus, face oedema

Read the Patient Information Leaflet


Always use Levonelle 1500 exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

This medicine is not recommended for use in children under 12 years of age.

Take the tablet as soon as possible, preferably within 12 hours, and no later than 72 hours (3 days) after you have had unprotected sex. Levonelle 1500 can be taken at any time in your menstrual cycle assuming you are not already pregnant or think you may be pregnant. Do not chew the tablet, swallow it whole with water. Do not delay taking the tablet. The tablet works better the sooner you take it after having unprotected sex.

If you are already using a regular method of contraception such as the contraceptive pill, you can continue to take this at your regular times.

If another unprotected intercourse takes place after the use of Levonelle 1500 (also if this is during the same menstrual cycle), the tablet will not exert its contraceptive effect and there is again the risk of pregnancy.

What to do if you are sick (vomit)

If you are sick (vomit) within three hours of taking the tablet, you should take another tablet. You will need to contact your pharmacist, doctor, practice nurse or family planning clinic immediately for one more tablet.

After you have taken Levonelle 1500

After you have taken Levonelle 1500, if you want to have sex, and are not using the contraceptive pill, you should use condoms or a cap plus spermicide until your next menstrual period. This is because Levonelle 1500 won’t work if you have unprotected sex again, before your next period is due.

After you have taken Levonelle 1500, you are advised to make an appointment to see your doctor about three weeks later, to make sure that Levonelle 1500 has worked. If your period is more than 5 days late or is unusually light or unusually heavy, you should contact your doctor as soon as possible. If you do become pregnant even after taking this medicine, it is important that you see your doctor.

Your doctor can also tell you about longer-term methods of contraception which are more effective in preventing you from getting pregnant.

If you continue to use regular hormonal contraception such as the contraceptive pill and you do not have a bleed in your pill-free period, see your doctor to make sure you are not pregnant.

Your next period after you took Levonelle 1500

After the use of Levonelle 1500, your period is usually normal and will start at the usual day; however sometimes, this will be a few days later or earlier. If your period starts more than 5 days later than expected, an ‘abnormal’ bleeding occurs at that time or if you think that you might be pregnant, you should check whether you are pregnant by a pregnancy test.

If you take more Levonelle 1500 than you should

Although there have been no reports of serious harmful effects from taking too many tablets at once, you may feel sick, actually be sick (vomit), or have vaginal bleeding. You should ask your pharmacist, doctor, practice nurse or family planning clinic for advice, especially if you have been sick, as the tablet may not have worked properly.

Read the Patient Information Leaflet