Depo-Provera, a contraceptive injection containing medroxyprogesterone acetate, was first approved by the FDA in 1992, but its use as a contraceptive dates back Read more Depo-Provera +1 Why does depo vera stop your period? Asked by Anonymous Depo-Provera works by delivering a synthetic form of the hormone progesterone, which prevents ovulation and alters the uterine
