The hormonal injection contains the hormone progestogen. It is given by a doctor or nurse once every 12 weeks.
With “perfect use” the injection is more than 99% effective meaning that less than one woman in every 100 who use it will get pregnant in a year.1
However, because with every day “typical use” it is not always used perfectly, up to 6 women out of 100 in a year will become pregnant.1
- The injection is a long-acting hormonal method if you prefer not to think about contraception on a daily or weekly basis
- You can breastfeed while you are using this method
- It may suit you if you cannot tolerate estrogens
- It may reduce heavy painful periods
- It may help reduce premenstrual symptoms (PMS)
- Your periods and fertility (ability to get pregnant) may take up to a year to return after you stop using the injections
- You may experience weight gain
- You may experience some side effects such as acne, breast tenderness, bloating and change in mood
- It does not protect against sexually transmitted infections
- It is not advised for long term use if you smoke or if you have a family history of osteoporosis
You can get a prescription for the injection from a doctor, Family Planning clinic or Well Woman Clinic. You then bring this to a Pharmacy where you can buy the injection. For Medical Card patients the injection is available on the GMS (General Medical Services). The injection is given by a doctor or nurse in your local surgery or Family Planning Clinic or Well Woman Clinic.