Depo-Provera is a literal shot in the arm that provides effective birth control, in most cases, for three months. The shot must be repeated every three months to provide continuing contraception.
Definition
Depo-Provera is the brand name for an injectable solution of medroxyprogesterone acetate produced by Pfizer.
Duration
Physicians are cautioned against prescribing Depo-Provera for use over more than two years unless there are no other suitable options.
Efficacy
According to the prescribing information, Depo-Provera is 99 percent effective when used regularly.
Bone Loss
According to Depo-Provera's prescribing information, women using Depo-Provera can experience increased bone loss. The longer you use Depo-Provera, the more bone you can lose, and the loss might not be completely reversible.
Bleeding
Women using Depo-Provera can experience unusual menstrual bleeding, including the possibility of heavy and continuous bleeding, which warrants immediate medical attention.
Side Effects
Other possible side effects of using Depo-Provera include weight gain, fluid retention, depression, convulsions, jaundice and a decrease in glucose tolerance.


