Birth Control

Depo-Provera
Depo-Provera, approved by the FDA in 1992, is a hormonal injection by a health professional into the buttocks or arm muscle every three months. It prevents pregnancy in three ways: it inhibits ovulation, changes the cervical mucus to help prevent sperm from reaching the egg, and changes the uterine lining to prevent the fertilized egg from implanting in the uterus. The injection, which contains the hormone progestin, is extremely effective in preventing pregnancy, in large part because it requires little effort to comply: you simply have to get an injection once every three months.

The overall failure rate is 0.3% when used as directed. The benefits are similar to those of the minipill and another progestin-only contraceptives, Side effects are also similar and can include irregular or missed periods, weight gain, and breast tenderness.





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