Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Get emergency medical help if you have severe pain in your lower stomach or side. This could be a sign of a tubal pregnancy (a pregnancy that implants in the fallopian tube instead of the uterus). A tubal pregnancy is a medical emergency.
The levonorgestrel IUD may become embedded into the wall of the uterus, or may perforate (form a hole) in the uterus. If this occurs, the device may no longer prevent pregnancy, or it may move outside the uterus and cause scarring, infection, or damage to other organs. Your doctor may need to surgically remove the device.
Call your doctor at once if you have:
severe cramps or pelvic pain, pain during sexual intercourse;
extreme dizziness or light-headed feeling;
severe migraine headache;
heavy or ongoing vaginal bleeding, vaginal sores, vaginal discharge that is watery, foul-smelling discharge, or otherwise unusual;
pale skin, weakness, easy bruising or bleeding, fever, chills, or other signs of infection;
jaundice (yellowing of the skin or eyes); or
sudden numbness or weakness (especially on one side of the body), confusion, problems with vision, sensitivity to light.
Common side effects may include:
pelvic pain, vaginal itching or infection, missed or irregular menstrual periods, changes in bleeding patterns or flow (especially during the first 3 to 6 months);
temporary pain, bleeding, or dizziness during insertion of the IUD;
ovarian cysts (pelvic pain that disappears within 3 months);
stomach pain, nausea, vomiting, bloating;
headache, migraine, depression, mood changes;
back pain, breast tenderness or pain;
weight gain, acne, changes in hair growth, loss of interest in sex; or
puffiness in your face, hands, ankles, or feet.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Liletta side effects (more detail)
