Depo-Provera is a branded progestogen-only contraceptive, depot medroxyprogesterone acetate (DMPAlong acting reversible hormonal contraceptive birth control drug that is injected every 3 months. It is an aqueous suspension for depot injection of the pregnane 17α-hydroxyprogesterone-derivative progestinmedroxyprogesterone acetate. It is also used for chemical castration.