What it is used for
- Long-term contraception
- Heavy menstrual bleeding
- Protection of the womb lining during certain hormone therapies
- Period pain and some symptoms of endometriosis (when prescribed)
How it works
A small T-shaped device placed in the womb that releases a small amount of progestogen locally. It thins the womb lining, thickens cervical mucus, and in some cases reduces ovulation.
How it is taken
Fitted into the womb by a trained clinician during a short procedure and left in place for several years depending on the type. You do not need to do anything daily. Follow your clinician's advice on checking the threads and when it must be replaced or removed.
No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.
Common side effects
- Irregular bleeding or spotting in the first months
- Lighter periods or no periods over time
- Cramping after fitting
- Headache
- Acne
- Breast tenderness
- Small ovarian cysts that usually settle
Serious effects — get help
- Severe pelvic pain or fever after fitting (possible infection)
- Signs that the device has moved or been expelled
- Severe one-sided abdominal pain (possible ectopic pregnancy)
- Symptoms of perforation of the womb (rare)
If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.
Interactions to watch
- Few medicine interactions because it acts mainly in the womb
- Still tell your clinician about all your medicines and conditions
Who should take care
- Tell your clinician about any current pelvic infection, unexplained bleeding, or possible pregnancy before fitting
- There is a small risk of infection in the weeks after insertion
- If you cannot feel the threads or have severe pain, seek assessment
- Does not protect against STIs