Levonorgestrel is a synthetic form of the female hormone progesterone. It is commonly used in emergency contraception pills and in long-acting reversible contraceptives. It works by preventing ovulation and altering the cervical mucus and endometrium to inhibit sperm migration and implantation.

Levonorgestrel FAQ


What is Levonorgestrel used for?

Levonorgestrel is used for emergency contraception to prevent pregnancy after unprotected sex or contraceptive failure.

How effective is Levonorgestrel?

When taken as directed, Levonorgestrel can significantly reduce the risk of pregnancy. However, it is most effective when used as soon as possible after unprotected sex.

What are the common side effects of Levonorgestrel?

Common side effects may include nausea, abdominal pain, fatigue, headache, and menstrual changes. These usually improve within a few days.

Can I use Levonorgestrel as a regular form of contraception?

Levonorgestrel is not intended for regular use as a primary method of contraception. It is meant to be used as an emergency contraceptive only.

How soon should I take Levonorgestrel after unprotected sex?

It is best to take Levonorgestrel as soon as possible after unprotected sex, preferably within 72 hours for maximal effectiveness.

Is Levonorgestrel the same as the 'abortion pill'?

No, Levonorgestrel is not the same as the abortion pill. It does not terminate an existing pregnancy, but rather prevents pregnancy from occurring.

Can I buy Levonorgestrel over the counter?

Yes, in many countries Levonorgestrel is available over the counter at pharmacies without a prescription.

Does Levonorgestrel protect against sexually transmitted infections (STIs)?

No, Levonorgestrel does not protect against sexually transmitted infections. It is solely intended to prevent pregnancy.

Can Levonorgestrel be used while breastfeeding?

Levonorgestrel is considered safe for use while breastfeeding, as it does not affect the quality or quantity of breast milk.

Is it safe to take Levonorgestrel if I have certain medical conditions?

People with certain medical conditions such as severe liver diseases, unexplained vaginal bleeding, and breast cancer should consult a healthcare professional before using Levonorgestrel.

Can Levonorgestrel be used by women of all ages?

Levonorgestrel can be used by women of reproductive age. However, individual medical history should be considered before use.

How does Levonorgestrel work to prevent pregnancy?

Levonorgestrel prevents pregnancy by inhibiting ovulation, altering the cervical mucus to impede sperm penetration, and changing the endometrium to prevent implantation of a fertilized egg.

Does Levonorgestrel cause weight gain?

There is no substantial evidence to suggest that Levonorgestrel causes weight gain in the majority of users.

What should I do if I vomit after taking Levonorgestrel?

If vomiting occurs within 2 hours of taking Levonorgestrel, it's recommended to contact a healthcare professional as another dose may be needed.

How long does Levonorgestrel stay in your system?

The effects of Levonorgestrel typically last for up to 72 hours after ingestion.

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