The different forms of the drug are approved for various uses, such as the prevention of pregnancy or the treatment of endometriosis symptoms. Medroxyprogesterone works to replace progesterone within the body. Common side effects include headache and irregular menstrual periods.
(For more information, click Medroxyprogesterone. This article talks in more detail about what the drug is used for, how it works, and why it may not be suitable for everyone. You can also click any of the links in the box to the right for specific information.)