The research suggests that ulipristal acetate, the active ingredient in the morning after pill, could be used to replace mifepristone, one of the two drugs used in a common type of abortion.

The Venus I study included 157 patients, with 101 randomised to ulipristal acetate 5mg and 10mg and 56 to placebo. It met all the co-primary and secondary endpoints with both ulipristal treatment ...