How does DMPA work?
Given as a shot, DMPA is a chemical about the same as the body’s natural hormone; progesterone. It works by preventing the ovary from producing an egg each month, and if no egg is produced, you cannot get pregnant. It also causes changes in the lining of the uterus. The lining thins causing periods to be irregular or absent. One shot lasts for 90 days (3 months). It is important that you return on time for your shot for continued protection from pregnancy.
