Levonorgestrel-releasing implant

Levonorgestrel-releasing implant is a type of birth control that is implanted under the skin. It releases a hormone called levonorgestrel, which prevents pregnancy.

Mechanism of action

The levonorgestrel-releasing implant works by releasing a steady dose of levonorgestrel, a type of progestin. This hormone prevents ovulation, or the release of an egg from the ovaries. It also thickens the mucus in the cervix, which makes it harder for sperm to reach the egg.

Use

The implant is inserted under the skin of the upper arm by a healthcare provider. It can prevent pregnancy for up to three years.

Side effects

Possible side effects of the levonorgestrel-releasing implant include changes in menstrual periods, weight gain, and mood changes. Serious side effects are rare, but can include blood clots and liver disease.

Effectiveness

The levonorgestrel-releasing implant is one of the most effective forms of birth control. It is more than 99% effective at preventing pregnancy.

See also

• Birth control
• Progestin
• Ovulation