Depo-Provera is a synthetic form of progesterone that is injected into a muscle. Possible side effects may include irregular menstrual periods, headaches, and weight gain. You should talk to your healthcare provider before receiving this medication if you think you might be pregnant, have depression, or have a history of breast cancer.
(Click Depo-Provera for more information about specific uses of this drug, for more details on how it works, and to learn about other side effects that may occur with treatment. You can also click on the various links in the box to the right to access specific topics on Depo-Provera.)