What Is Mirena?

Mirena is a hormonal intrauterine device (IUD) which is used to prevent pregnancy. The device is intended for long term use and is inserted into the uterus.

How Does the Mirena Function?

Mirena is a t-shaped piece of plastic that releases progestin into the uterus. This thickens the cervical mucus which will prevent the sperm from reaching the egg and fertilizing it. This drug will also thin the lining of the uterus which can be used as a way to suppress ovulation. You can also use Mirena to help decrease the risk of developing pelvic inflammatory disease, though this will not completely eliminate the risk. Mirena will decrease menstrual pain and menstrual bleeding after three to six months in the body. You can keep Mirena in your body for up to five years after it has been inserted. Mirena can be removed at any time, which will return the user to baseline fertility.

How Is Mirena Inserted?

Before inserting a Mirena, you should bear the tips below in mind:

Mirena releases approximately 20mg of levonorgestrel a day to help prevent pregnancy. This rate is halved after five years, making it necessary to remove the device and have a new one inserted at this time if you wish to continue using Mirena as a form of birth control. Your doctor will examine your body to determine if you can have a new Mirena device inserted immediately or if you should wait for some time after this point.

When inserting a Mirena:

Care Tips After Inserting a Mirena:

Removal of the Mirena

What Are the Risks of Using Mirena?

Are There Any Interactions?

Some conditions may not be able to be treated effectively if Mirena is in your system. If you develop inflammation of the endometrium, a pelvic infection, endometrial cancer, cervical cancer, significant increase in blood pressure, or uterine or cervical perforation inform your doctor that you are using Mirena before you start your treatment. It is likely that your doctor will recommend that you have the device removed until your condition is properly treated.

You should not use barbiturates, bosentan, carbamazepine, felbamate, griseofulvin, oxcarbazepine, phenytoin, rifampin, St. John's wort or topiramate while on Mirena. Talk with your doctor if you are using any of these medications to determine how to adjust your dosage to a safe level before you have the device inserted.

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