<unk> (Intrauterine) is an contraceptive that is FDA approved for the prophylaxis of as method of contraception for women with heavy menstrual bleeding.   Common adverse reactions include menstrual bleeding, nausea, lower abdominal pain, fatigue, headache, and dizziness.
Levonorgestrel 
Etonorgestrel
Leuprolide
Etonogestrel
Norgestrel
Gestodene
Proligeston
Ritiometan