- Very effective
- Lasts for 12 weeks (3 months)
- Periods may stop, be irregular or last longer.
- Periods and fertility may take time to return after stopping the injection
- Some women gain weight
- The injection cannot be removed from the body so any side effects may continue for as long as it works and for some time afterwards
- Less than 4 women in 1000 will get pregnant over two years
For more detailed information, please visit: Contraceptive Injection (FPA)