Refresher: Which emergency contraception is best

A comparison of ulipristal acetate and levonorgestrel
emergency contraception

Evidence suggests ulipristal acetate is a more effective form of emergency contraception than levonorgestrel.

It's twice as likely as levonorgestrel to prevent pregnancy, according to an update by the RACGP.

It also appears to be more effective than levonorgestrel in obese and overweight women.