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Drug Class: Commonly Known As: Category:
Contraceptive Postinor-2® Adult

Levonorgestrel - Dosage and How to Use

How should Levonorgestrel be used?

  • ​You may take this medication with or without food
  • You may take the medication at any time during the menstrual cycle.
  • The most common method of taking the medication would be to take the 1st tablet as soon as possible within 72 hours of sexual intercourse; the 2nd tablet must be taken 12 hours after taking the first tablet. Some might be directed to take 2 tablets at the same time within 72 hours of intercourse.
  • The medication is less effective after 72 hours. You should not take more than 4 tablets each month.
  • If you vomit within 2 hours after taking the medicine, take another tablet as a replacement. Consult a doctor to get an additional dose of the medicine.

You may still get pregnant if there is sexual intercourse after taking the pill. Ensure that you use a condom or any other type of birth control method if you have sexual intercourse after taking the emergency contraceptive pill.

What should I do if I miss a dose?

​If you forget to take the 2nd tablet 12 hours later, take it as soon as possible – do not delay taking the tablet. The tablet works best the sooner you take it after having unprotected sex. It can only prevent you from becoming pregnant, if you take it within 72 hours of unprotected sex. Please contact your healthcare professional if it is more than 72 hours.

What should I do if I overdose?

Levonorgestrel - Additional Information

When can I start my regular hormonal contraception after taking Postinor-2 (Levonorgestrel)?

You can continue or start any birth control method right away. For the next 7 days, you also must use a barrier method (for example: condoms, diaphragm, and spermicides) along with your regular birth control method, or not have sexual intercourse.

  • Updated on Sunday, June 30, 2019
  • Article contributed by PSS National Medication Information Workgroup

    The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth


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