Mirena

Definition

Mirena is a hormonal intrauterine device (IUD) used for long-term contraception. It releases levonorgestrel, a type of progestin, to prevent pregnancy.

5 Must Know Facts For Your Next Test

1. Mirena can be effective for up to 5 years after insertion.
2. It primarily works by thickening cervical mucus and inhibiting sperm movement.
3. Mirena also thins the uterine lining, making it less suitable for implantation.
4. Common side effects may include irregular bleeding, especially in the first few months.
5. It's also approved for the treatment of heavy menstrual bleeding in women who choose intrauterine contraception.

Review Questions

• How long can Mirena remain effective as a contraceptive method?
• What hormone does Mirena release and what is its primary function?
• Name two common side effects associated with Mirena.

Related terms

Levonorgestrel: A synthetic progestin used in various contraceptives, including Mirena.

Intrauterine Device (IUD): A small T-shaped device inserted into the uterus to prevent pregnancy.

Hormonal Contraception: Birth control methods that use hormones to regulate or stop ovulation.