The intrauterine system (IUS) is a small, T-shaped, soft plastic that contains small amounts of a hormone called levonorgestrel. It is called Mirena or Jaydess.
How does it work?
Releases the hormone slowly over time and acts on the lining of the uterus (womb).
Changes the lining and mucous of the cervix which makes it difficult for the sperm to get to a woman’s egg.
Advantages
Mirena can stay in the uterus up to 5 years. Jaydess is effetive for up to 3 years.
No daily routine required.
Does not contain the hormone estrogen.
Okay for breastfeeding women to use.
Reduces menstrual cramps.
May reduce the risk of some forms of cancer (endometrial).
Some women may stop having menstrual periods.
Does not interfere with sex.
Considerations
May cause irregular bleeding and spotting for the first 3-6 months.
A very small number of women will have the IUS come out on its own.
A monthly string check is recommended after menstrual period.
How to use an IUS
The IUS must be put in and taken out by a trained health care professional.
Typical success rate
99% effective.
Sexually transmitted infection (STI) protection
The IUS does not protect against STIs. Use a condom, dental dam, or glove every time you have sex. 12
Contact Us
For more information, please contact The Clinic at 519-663-5317.
Date of creation: July 26, 2011 Last modified on: May 20, 2022
