Levonorgestrel is used to prevent pregnancy after you have had unprotected sex. This includes contraceptive failure such as a condom breaking or missing your regular contraceptive tablets.
Take levonorgestrel as soon as possible, but no later than 72 hours, after unprotected sex.
Sometimes levonorgestrel can make you feel sick or vomit. Taking the tablet with food may help prevent this. If you vomit within 3 hours of taking levonorgestrel, you will need to take another tablet.
Some medicines available without a prescription may react with levonorgestrel including:
Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. St John's wort) or recreational drugs.
|Side Effects||Recommended action|
|If within 3 hours, you will need to get another tablet|
Changes in periods
Nausea, abdominal pain
Headache, dizziness, tiredness or weakness
|Tell your health professional if troublesome|
If you notice any other effects, discuss them with your doctor or pharmacist.
This leaflet contains important, but not all, information about this medicine.
Prepared by the PILs Committee at Christchurch Hospital, Canterbury District Health Board, New Zealand. September 2019
For more general information about this sheet and its contents, see: What does a My Medicines sheet cover?
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My Medicines Patient Information Leaflets (PILs) contain important, but not all, information about the medicines they describe.
For more information about the sheets, see: What does a My Medicines sheet cover?
My Medicines is developed by a team at the Canterbury District Health Board. Our team is made up of doctors, pharmacists, and a non-medical person to help us keep to plain language. We also discuss our information with specialist health professionals or groups when needed