Gynefix works like a regular IUD but has a flexible row of copper beads instead of a rigid frame. It’s attached to the uterus wall by a fine nylon thread, which makes it less likely to be expelled by the body.

Considerations: offers no protection from sexually transmitted infections/HIV/AIDS. There is a higher risk of infection for women with more than one partner.

Available from? It must be fitted by a doctor. This can be done by your GP or at a family planning clinic.

How effective? More than 99%.