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Levonorgestrel Vaginal insert

The device is placed inside the uterus by a healthcare professional

Generic Name: levonorgestrel  |  Brand Name: Mirena

Brand Names: Norplant System, Mirena, Plan B

What is this medicine?

LEVONORGESTREL IUD (LEE voe nor jes trel) is a contraceptive (birth control) device. The device is placed inside the uterus by a healthcare professional. It is used to prevent pregnancy and can also be used to treat heavy bleeding that occurs during your period. Depending on the device, it can be used for 3 to 5 years.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • abnormal Pap smear
  • cancer of the breast, uterus, or cervix
  • diabetes
  • endometritis
  • genital or pelvic infection now or in the past
  • have more than one sexual partner or your partner has more than one partner
  • heart disease
  • history of an ectopic or tubal pregnancy
  • immune system problems
  • IUD in place
  • liver disease or tumor
  • problems with blood clots or take blood-thinners
  • use intravenous drugs
  • uterus of unusual shape
  • vaginal bleeding that has not been explained
  • an unusual or allergic reaction to levonorgestrel, other hormones, silicone, or polyethylene, medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

This device is placed inside the uterus by a health care professional.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

This does not apply.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • amprenavir
  • bosentan
  • fosamprenavir

This medicine may also interact with the following medications:

  • aprepitant
  • barbiturate medicines for inducing sleep or treating seizures
  • bexarotene
  • griseofulvin
  • medicines to treat seizures like carbamazepine, ethotoin, felbamate, oxcarbazepine, phenytoin, topiramate
  • modafinil
  • pioglitazone
  • rifabutin
  • rifampin
  • rifapentine
  • some medicines to treat HIV infection like atazanavir, indinavir, lopinavir, nelfinavir, tipranavir, ritonavir
  • St. John's wort
  • warfarin

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check ups. See your doctor if you or your partner has sexual contact with others, becomes HIV positive, or gets a sexual transmitted disease.

This product does not protect you against HIV infection (AIDS) or other sexually transmitted diseases.

You can check the placement of the IUD yourself by reaching up to the top of your vagina with clean fingers to feel the threads. Do not pull on the threads. It is a good habit to check placement after each menstrual period. Call your doctor right away if you feel more of the IUD than just the threads or if you cannot feel the threads at all.

The IUD may come out by itself. You may become pregnant if the device comes out. If you notice that the IUD has come out use a backup birth control method like condoms and call your health care provider.

Using tampons will not change the position of the IUD and are okay to use during your period.


Last Updated: January 17, 2013
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