Levonorgesterol (Releasing Intrauterine System)
Levonorgesterol is a female hormone that is used to help prevent pregnacy. The releasing intrauterine system version of this drug is a plastic implant that is placed in the uterus. This device prevents pregnancy for up to five years by consistently releasing hormones into the woman’s body. The influx of hormones causes physical changes that make pregnancy substantially more difficult to achieve.
This device only protects patients against pregnancy; it does not protect them against HIV or other sexually transmitted diseases.
Patients may experience nausea and dizziness when the doctor first implants the device. These side effects should go away within 30 minutes. Some patients experience pelvic cramping or vaginal bleeding as a result of wearing this device. If the device becomes uncomfortable, patients should see their doctor; they cannot remove the device themselves.