Mirena is a T-shaped device inserted by a physician into a woman's uterus. It delivers hormones aimed at preventing pregnancy. This intrauterine device (IUD) can remain in place for up to five years. Most women are able to conceive within a year after the removal of the Mirena device.
Medication
Mirena contains the hormone levonorgestrel. Levonorgestrel, slowly released by the device, absorbs into the uterus and in smaller amounts into the bloodstream.
Function
The IUD works to prevent pregnancy by making changes in cervical mucus and to the lining of the uterus. Both work to prevent a fertilized egg from implanting in the uterine wall.
Candidates
Women who have had at least one child and currently have only one sexual partner are the best candidates for using Mirena. Women who have a history of breast cancer or active pelvic infections should not use this IUD.
Side Effects
Some side effects of the device include increased uterine bleeding, pelvic infections and pain.
Pregnancy
If pregnancy occurs while using Mirena, the physician must remove the IUD immediately to prevent harm to the mother and baby.
Maintenance
Each month, after a menstrual period, the user needs to feel inside the vagina for the IUD removal strings. This helps ensure correct placement of the device.
