<unk> (injection) is a progestin that is FDA approved for the prevention of pregnancy. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include injection site reaction, weight gain , abdominal pain, dizziness, headache, feeling nervous , amenorrhea, disorder of menstruation, menstrual spotting, reduced libido, fatigue.
Medroxyprogesterone acetate 
Desoxymethyltestosterone
Gestodene
Leuprolide
Hydroxyprogesterone caproate
Proligeston
Nomegestrol
Fosfestrol