How effective is Depo-Provera? Unlike the related steroids megestrol acetate and cyproterone acetateMPA is not an antagonist of the AR and does not have direct antiandrogenic activity. Multinational Monitor. The FDA recommends that DMPA not be used for longer than 2 years, unless there is no viable alternative method of contraception, due to concerns over bone loss.
Weekly Drug News Roundup. Though rare, serious side effects can occur. Answer this question. I agree with your obgyn. Most definately. I got my shot on the 24th day of my cycle, but had sex protected with my boyfriend four days before my shot. But another one said it starts working in 5 days if you have your period?
Much of this may have to do with human error, such as forgetting to come in for the shots on time. As you continue to use Depo-Provera Contraceptive Injection, you may skip a period or stop having periods completely.
However, if you think you may be pregnant, see your health care provider immediately. Current Opinion in Obstetrics and Gynecology. The Journal of Pediatrics.
Download as PDF Printable version. Annals of Oncology. Seminars in Reproductive Medicine. World Health Organization.