595790 Disclosed herein a method for on-demand contraception, which method comprises administering 17?-acetoxy-11?-[4-N,N-dimethylamino-phenyl)-19-norpregna-4,9-diene-3,20- dione (ulipristal acetate) or a metabolite thereof in a woman, within 72 hours before an intercourse or within 120 hours after the intercourse.
