To identify the abortion pill, we distinguish between contraceptives and abortifacients:

1. Contraceptives: The text mentions injectable contraceptives . DMPA (Depot Medroxyprogesterone Acetate) and NET-EN (Norethisterone Enanthate) are standard examples of progestogen-only injectable contraceptives used to prevent pregnancy.
2. Spermicides: Nonoxynol-9 is a chemical spermicide used in barrier methods.
3. Abortion Pill: RU486 (Mifepristone) is an anti-progestogen drug used for Medical Termination of Pregnancy (MTP). MTP is the voluntary termination of pregnancy before full term . Unlike contraceptives which prevent conception, RU486 terminates an established pregnancy.