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Levonorgestrel

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

Levonorgestrel - Side Effects, Precautions, and Contraindications

What side effects can Levonorgestrel cause?

​You may experience some spotting or bleeding within two to three days after taking the tablet. Your next period usually starts within a week from your expected date. However, if your period is more than 7 days late, it is recommended to get a pregnancy test. If you experience heavy or extended period of bleeding, or very bad stomach pain, you should consult your doctor.

Other side-effects:

  • Nausea and vomiting
    • Take the medication after food to reduce this side effect.
  • Headache
    • You may take Paracetamol to manage the headache.
  • Breast tenderness
  • Dizziness, Fatigue
    • Avoid activities that require mental alertness and avoid using heavy machineries.

The symptoms of a drug allergy include one or more of the following:

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

Before taking Levonorgestrel, what precautions must I follow?

​Inform your healthcare professional if:

  • You are allergic to this medication or any of the other ingredients of this medication
  • You may already be pregnant, or breastfeeding
  • You are taking any other medications, including supplements, traditional medications and herbal remedies
  • You have severe liver disease

What food or medicine must I avoid when I take Levonorgestrel?

​Some medications may prevent this medication from working effectively. Inform your healthcare professional if you have taken any medication since the last 4 weeks to ensure the correct type of emergency contraceptive has been prescribed for you.

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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