How does
    LILETTA work?

Ovary LILETTA Cervix Vagina LILETTA Threads Uterus Fallopian Tube

For illustrative purposes only.

LILETTA is a small, flexible, plastic, T-shaped device that, when inserted into the uterus, slowly releases 52 mg of a progestin hormone called levonorgestrel. This is the same kind of hormone that is often used in birth control pills. Only a small amount of levonorgestrel enters your bloodstream. LILETTA does not contain estrogen.

LILETTA may work in several ways including:

It is not known exactly how these actions work together to prevent pregnancy.

LILETTA® (levonorgestrel-releasing intrauterine system) 52 mg is a hormone-releasing system placed in your uterus to prevent pregnancy for as long as you want for up to 4 years.


LILETTA does not protect against HIV or STDs.

Available by prescription only.

Please also see full Prescribing Information.


  1. LILETTA (levonorgestrel-releasing intrauterine system) 52 mg [Prescribing Information]. Irvine, CA: Allergan and Medicines360; 2017.
  2. Glossary of Sexual Health Terms. Planned Parenthood Federation of America, Inc. Accessed September 27, 2017.