The research could further complicate the polarized politics of abortion because the drug in the study is the key ingredient in a pill used for emergency contraception. Abortion Drugs, Abortion, Birth Control and Family Planning, Plan B (Contraceptive), Mifeprex (RU-486), Research, Ella, ulipristal acetate, NEJM Evidence (Journal) The research could further complicate the polarized politics of abortion because the drug in the study is the key ingredient in a pill used for emergency contraception. NYT > Business