Levonorgestrel
The Morning After Pill

Levonorgestrel is a progestin-only emergency contraceptive pill designed to prevent pregnancy after unprotected sex or contraceptive failure. It works most effectively when taken as soon as possible, preferably within 24 hours, but it can be used up to 72 hours (three days) after intercourse.

Levonorgestrel works by temporarily stopping the release of an egg from the ovary, preventing fertilisation, or stopping a fertilised egg from implanting in the uterus. It does not work if the fertilised egg has already implanted, meaning it is not effective once pregnancy has started.

Levonorgestrel is recommended after unprotected intercourse or contraceptive failure, such as:

• A missed contraceptive pill, delayed injection, or dislodged contraceptive ring.

• Condom breakage or incorrect use of a diaphragm or cervical cap.

• Ejaculation near the genital area or unplanned intercourse during a fertile window.

• Sexual assault or other instances where no contraception was used.

Take one 1.5 mg levonorgestrel tablet orally with water as soon as possible after unprotected sex. It is most effective within the first 24 hours but can be used up to 72 hours after intercourse. If vomiting occurs within two hours of taking the pill, you may need to repeat the dose.

Yes, levonorgestrel can be used at any point in your menstrual cycle. However, you should avoid unprotected sex after taking the pill, as its effects are temporary and it does not provide ongoing contraception.

Levonorgestrel may cause changes to your menstrual cycle. Your period could arrive earlier or later than usual and may be heavier or lighter. If your period is delayed by more than three weeks, consult a healthcare professional and take a pregnancy test.

No, levonorgestrel is not intended for regular contraceptive use as it can cause irregular menstrual cycles. For ongoing contraception, consider options such as oral contraceptives, implants, or IUDs, which are more reliable for long-term use.

No, levonorgestrel does not provide protection against STIs, including HIV. Use condoms to reduce the risk of transmission. If you are concerned about STIs, contact a sexual health clinic for testing and advice.

No, levonorgestrel cannot terminate a pregnancy. It is only effective in preventing pregnancy before implantation occurs.

Levonorgestrel is generally considered safe for individuals who are breastfeeding. However, some manufacturers advise pausing breastfeeding for a short time after taking the pill. Check the patient information leaflet or consult your healthcare provider for guidance.

Common side effects include:

• Nausea or upset stomach.

• Breast tenderness.

• Abdominal pain or cramping.

• Dizziness or fatigue.

• Changes in menstrual bleeding patterns.

If vomiting occurs within two hours of taking the pill, consult a pharmacist or doctor for a replacement dose.

No, levonorgestrel does not have a long-term impact on fertility. Ovulation and normal fertility levels typically return with your next cycle.

If your period is delayed by more than three weeks or is unusually light or heavy, take a pregnancy test and consult your doctor to rule out pregnancy.

You can order Levonorgestrel directly from My London Pharmacy. Simply complete a quick online consultation, and our licensed clinicians will review your health to determine if this treatment is suitable for your condition. Once approved, we’ll provide fast, discreet delivery across the UK, ensuring your privacy throughout the process.