Skyla (Generic Levonorgestrel IUD 13.5Mg): Complete Medication Guide
Key Takeaways
Skyla is a small, T-shaped device placed in your uterus to prevent pregnancy for up to 3 years
It releases a synthetic hormone called levonorgestrel directly where it works, with minimal effects on the rest of your body
Common side effects include irregular bleeding, cramping, and spotting, especially in the first few months
Serious complications are rare but may include perforation or infection; talk to your doctor about warning signs
This information is educational and does not replace advice from your healthcare provider
Skyla Overview
Skyla is a small, plastic IUD (intrauterine device) that prevents pregnancy by releasing the hormone levonorgestrel inside your uterus. IUDs are one of the most effective birth control methods available—more than 99% effective. Unlike birth control pills you take daily, Skyla works continuously for up to 3 years after insertion, then must be replaced or removed.
The device is about the size of a matchstick and shaped like a T. Your doctor places it inside your uterus during a quick office visit. Because the hormone is released directly where it's needed, only tiny amounts enter your bloodstream, which is why many people experience fewer side effects compared to birth control pills. Skyla is a generic version, meaning it contains the same active ingredient and works the same way as brand-name options, often at a lower cost. You may find information comparing generic versus brand-name drugs helpful when deciding on your contraceptive options.
Skyla is used for pregnancy prevention in people who can become pregnant and want long-term, reversible birth control.
Side Effects
Most people tolerate Skyla well, and side effects usually improve within the first 3–6 months. Let your clinician know if symptoms are bothersome or don't improve.
Common Side Effects
Irregular or prolonged bleeding — Spotting or heavier periods are common, especially in the first 3 months; most people experience lighter periods over time
Cramping and pelvic pain — Mild to moderate cramping may occur during insertion and for a few days afterward, or randomly during your cycle
Headaches — Some people report tension headaches or migraines, though these usually resolve
Breast tenderness — Soreness or sensitivity may happen, similar to PMS symptoms
Acne or skin changes — The hormone may trigger breakouts or affect skin texture in some people
Mood changes — Rare reports of mood swings or changes in emotional state; most people experience no change
Serious Side Effects
Uterine perforation — The device may puncture the uterine wall during insertion or over time; this is rare (less than 1 in 1,000) but requires removal and possible repair
Pelvic inflammatory disease (PID) — An infection of the reproductive organs that may cause fever, severe pain, or discharge; seek immediate care if suspected
Ectopic pregnancy — Though rare, pregnancy outside the uterus is more likely with an IUD than other birth control methods; severe abdominal pain warrants urgent evaluation
Expulsion — The device may partially or fully come out of your uterus; check string position monthly and contact your doctor if you can't feel it
Allergic reaction — Rare but may cause swelling, severe pain, or difficulty breathing immediately after insertion
When to Seek Medical Attention
Contact your doctor right away if you experience severe abdominal or pelvic pain, fever, unusual vaginal discharge with foul odor, heavy bleeding that soaks more than one pad per hour, or difficulty breathing after insertion. You should also reach out if you can't feel the IUD strings, suspect pregnancy, or have signs of infection. Most side effects are mild and resolve on their own, but your clinician can help determine what's normal and what needs attention. For more details, review information about serious side effects of Skyla.
Dosage
Form |
Dose / Strength |
Duration |
Removal |
IUD device |
13.5 mg levonorgestrel |
Up to 3 years |
Removed by a healthcare provider in an office visit |
Important: Do not attempt to remove or reposition Skyla yourself. If you miss a period or suspect pregnancy, take a test and contact your doctor immediately. If you decide to stop using Skyla before 3 years, your doctor can remove it at any time, and you may become pregnant as soon as it's removed. Keep your follow-up appointments to ensure the device is positioned correctly.
Drug Interactions
Skyla has very few drug interactions because the hormone is released locally in your uterus rather than absorbed systemically into your bloodstream like birth control pills. However, certain medications may reduce effectiveness or increase risks.
Antibiotics (Rifampin)
Rifampin, an antibiotic used to treat tuberculosis, may reduce the effectiveness of levonorgestrel by speeding up how your body breaks it down. If you take rifampin, discuss alternative birth control methods or increased monitoring with your doctor.
Anti-Seizure Medications
Drugs like phenytoin, carbamazepine, and phenobarbital may lower levonorgestrel levels and reduce contraceptive effectiveness. Your doctor may recommend backup birth control or a higher-dose progestin IUD if you take these medications.
NSAIDs (Nonsteroidal Anti-Inflammatory Drugs)
Over-the-counter pain relievers like ibuprofen and naproxen may reduce the contraceptive effectiveness of levonorgestrel when used regularly over long periods. Occasional use is generally safe, but chronic heavy use warrants discussion with your clinician. For more information, see what to avoid when taking levonorgestrel.
St. John's Wort
This herbal supplement, often used for mood support, may decrease levonorgestrel effectiveness by increasing metabolism. Avoid St. John's Wort or use backup contraception if you take it while using Skyla.
For a comprehensive overview, read what substances to avoid when using Skyla.
Continue Learning
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Pros and Cons
Pros
Long-acting and reversible — Works for up to 3 years with no daily action needed; can be removed anytime if you change your mind
Highly effective — More than 99% effective at preventing pregnancy, comparable to sterilization
Minimal systemic effects — Because hormone is released locally, fewer side effects than birth control pills for many people
Cost-effective — Generic option is usually affordable, and one insertion covers years of contraception
Compatible with breastfeeding — Safe to use while breastfeeding; does not affect milk supply
Cons
Insertion discomfort — The insertion procedure can be painful or crampy for some people, though it's brief
Irregular bleeding initially — Spotting and unpredictable periods are common in the first few months
No protection against STIs — IUDs prevent pregnancy but not sexually transmitted infections; condoms are still recommended if at risk
Requires office visit — Insertion and removal must be done by a healthcare provider; you can't self-insert or remove
Rare but serious complications — Uterine perforation, expulsion, or infection can occur and may require emergency care
Frequently Asked Questions
Get answers to common questions about Skyla.
Skyla provides pregnancy prevention for up to 3 years. After 3 years, it stops releasing hormone effectively and must be removed or replaced. Your doctor will advise you when it's time for removal based on your insertion date. Replacement with a new device can happen immediately during the same office visit.
Yes, Skyla is safe for people who have never been pregnant. In the past, IUDs were primarily recommended for people with children, but current guidelines show they work well and are safe for anyone, regardless of pregnancy history. Talk to your doctor about whether Skyla fits your contraceptive goals. You may also find a comparison of Skyla versus Mirena IUD useful if you're weighing options.
No. Fertility typically returns immediately after Skyla removal. Unlike some birth control methods, there's no waiting period. If you want to become pregnant, your doctor can remove the device at any time, and you may conceive in your next cycle. The hormones don't remain in your system.
Check the strings once a month, usually after your period. If you can't feel them, contact your doctor. The strings may have curled upward or the device may have shifted—both require evaluation. Do not attempt to locate or reposition the IUD yourself. Your doctor can confirm the device is still in place with an ultrasound.
Skyla may lighten your periods or eventually stop them, but this varies by person. Some people experience no change in bleeding patterns, while others have light spotting or amenorrhea (no period). This is normal and not harmful. If your bleeding pattern changes significantly or you have concerns, discuss them with your clinician.
The Bottom Line
Skyla is a safe, highly effective, long-acting birth control device that releases a small amount of hormone directly in your uterus. It prevents pregnancy for up to 3 years without daily action on your part. While insertion may cause temporary cramping and you might experience irregular bleeding in the first few months, most people adapt well and appreciate the convenience and reliability. Serious complications are rare. Whether you're looking for a low-maintenance contraceptive option or exploring alternatives to daily pills, Skyla may be worth discussing with your healthcare provider.
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