Generic Name: levonorgestrel intrauterine system (LEE voe nor JES trel IN tra UE ter ine SIS tem)
Brand Names: Skyla, Kyleena, Liletta, Mirena (Each brand releases a different amount of hormone)
Medically reviewed by Kaci Durbin, MD. Last updated on Mar 11, 2019.
What is Skyla?
Skyla contains levonorgestrel, a female hormone that can cause changes in your cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.
Skyla intrauterine device (IUD) is a small, flexible plastic T-shaped device. This device is placed in the uterus where it slowly releases the hormone to prevent pregnancy for 3 years. (Other types of levonorgestrel intrauterine systems release different amounts of hormone and are used for different lengths of time.)
Skyla can be used whether you have had children or not. It should not be used during pregnancy.
Levonorgestrel is a progestin hormone and does not contain estrogen. The Skyla IUD releases levonorgestrel in the uterus, but only small amounts of the hormone reach the bloodstream. Skyla should not be used as emergency birth control.
You should not use the Skyla IUD if you have abnormal vaginal bleeding, a pelvic infection, certain other problems with your uterus or cervix, or if you have breast or uterine cancer, liver disease or liver tumor, or a weak immune system.
Do not use Skyla during pregnancy. Call your doctor if you miss a period or think you might be pregnant.
Skyla does not protect against HIV infection (AIDS) and other sexually transmitted infections (STIs).
Call your doctor at once if you have symptoms of a stroke or heart attack, such as sudden numbness or weakness, severe headache, or chest pain.
Before taking this medicine
A Skyla IUD can increase your risk of developing a serious pelvic infection, which may threaten your life or your future ability to have children. Ask your doctor about your personal risk and about ways to help prevent a pelvic infection.
Do not use this Skyla during pregnancy. This device can cause severe infection, miscarriage, premature birth, or death of the mother if left in place during pregnancy. Tell your doctor right away if you become pregnant. If you choose to continue a pregnancy that occurs while using a Skyla IUD, watch for signs of infection such as fever, chills, flu symptoms, cramps, vaginal bleeding or discharge.
You should not use Skyla if you are allergic to levonorgestrel, silicone, silica, silver, barium, iron oxide, or polyethylene, or if you have:
abnormal vaginal bleeding that has not been checked by a doctor;
an untreated or uncontrolled pelvic infection (vaginal, cervical uterine, or bladder);
endometritis (uterine infection) or a serious pelvic infection following a pregnancy or abortion within the past 3 months;
a history of pelvic inflammatory disease (PID), unless you have had a normal pregnancy after the infection was treated and cleared;
certain types of uterine fibroid tumors or other conditions that affect the shape of the uterus;
past or present breast cancer, known or suspected cervical or uterine cancer;
liver disease or liver tumor (benign or malignant);
a recent abnormal Pap smear that has not yet been diagnosed or treated; or
a disease or condition that weakens your immune system (such as AIDS or leukemia);
if you have another intrauterine device (IUD) in place.
To make sure Skyla is safe for you, tell your doctor if you have ever had:
high blood pressure, heart disease or a heart valve disorder;
a heart attack or stroke;
a bleeding or blood-clotting disorder;
migraine headaches; or
a vaginal infection, pelvic infection, or sexually transmitted disease.
uterine fibroid tumors.
You should not use Skyla if you are breast-feeding a baby younger than 6 weeks old. This IUD may be more likely to form a hole or get embedded in the wall of your uterus if you have the device inserted while you are breast-feeding.
How is Skyla used?
Skyla is a T-shaped plastic device that is inserted through the vagina and placed into the uterus by a doctor. The device is usually inserted within 7 days after the start of a menstrual period.
You may feel pain or dizziness during insertion of the IUD. You may also have minor vaginal bleeding. Tell your doctor if you still have these symptoms longer than 30 minutes.
The Skyla IUD should not interfere with sexual intercourse, wearing tampons, or using other vaginal medications.
After each menstrual period, make sure you can still feel the removal strings. Wash your hands with soap and water, and insert your clean fingers into the vagina. You should be able to feel the strings at the opening of your cervix. Call your doctor at once if you cannot feel the strings, or if you think the device has slipped lower in your uterus or out of your uterus. A sudden increase in menstrual flow may be a sign that the device has slipped out of place.
If you think the Skyla IUD is not properly in place, use a non-hormone method of birth control (condom, or diaphragm with spermicide) to prevent pregnancy until your doctor is able to replace the Skyla IUD.
Your doctor will need to see you within 4 to 6 weeks after insertion of the device to make sure it is still in place correctly. You will also need regular annual pelvic exams and Pap smears.
You may have irregular periods during the first 3 to 6 months of use. Your flow may be lighter or heavier, and you may eventually stop having periods after several months. Call your doctor if you miss a period or think you might be pregnant.
If you need to have an MRI (magnetic resonance imaging), tell your caregivers ahead of time that you have an IUD in place.
Your Skyla IUD may be removed at any time you decide to stop using birth control. The Skyla IUD must be removed after 3 years. Your doctor can insert a new device at that time if you wish to continue using this form of birth control. Only your doctor should remove the IUD. Do not attempt to remove the device yourself.
If you wish to continue preventing pregnancy, you may need to start using another birth control method a week before your Skyla intrauterine system is removed.
Skyla dosing information
Usual Adult Dose for Birth Control:
Skyla: One 13.5 mg intrauterine system is effective for 3 years. Skyla can be inserted at any point during the menstrual cycle. Skyla can be inserted immediately after a first trimester abortion, but not until six weeks after a delivering a baby or having a second trimester abortion.
Back up birth control not needed when Skyla is inserted during a menstrual period. If inserted at another time during the menstrual cycle, backup birth control should be used for 7 days.
What happens if I miss a dose?
Since the IUD continuously releases a low dose of levonorgestrel, missing a dose does not occur when using this form of levonorgestrel.
What happens if I overdose?
Since the IUD continuously releases a low dose of levonorgestrel, overdose of levonorgestrel released from the intrauterine system is very unlikely to occur.
What should I avoid while using Skyla?
Avoid having more than one sexual partner. The intrauterine device can increase your risk of developing a serious pelvic infection, which is often caused by sexually transmitted disease. Skyla will not protect you from sexually transmitted diseases, including HIV and AIDS. Using a condom is the only way to help protect yourself from these diseases.
Call your doctor if your sexual partner develops HIV or a sexually transmitted disease, or if you have any change in sexual relationships.
Skyla side effects
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 Skyla 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;
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;
sudden numbness or weakness (especially on one side of the body), confusion, problems with vision, sensitivity to light;
jaundice (yellowing of the skin or eyes); or
signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Common Skyla side effects may include:
irregular menstrual periods or changes in bleeding patterns or flow;
vaginal itching or infection;
pelvic pain or painful periods;
stomach pain, nausea, vomiting, bloating;
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.
What other drugs will affect Skyla?
Other drugs may interact with levonorgestrel, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Skyla only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Copyright 1996-2020 Cerner Multum, Inc. Version: 7.02.
No, antibiotics do not affect IUDs such as Kyleena, Mirena, or Skyla. In fact, there are not many contraceptive devices or even contraceptives that are affected by antibiotics, despite popular belief that this is the case. IUDs work directly in the uterine cavity and do not rely on absorption through the stomach, nor metabolism through the liver for their effect and have few interactions. Continue reading
Kyleena is immediately effective if inserted within the first 7 days of a woman’s period, immediately following a first-trimester abortion or miscarriage, or if inserted the same day as a hormonal contraceptive implant or intrauterine device is removed. In other circumstances, it may take up to seven days for Kyleena to become effective and another method of contraception should be used or the woman should abstain from vaginal intercourse for 7 days to prevent pregnancy. Continue reading
More about Skyla (levonorgestrel)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
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- Drug class: contraceptives
- FDA Approval History