Depo-Provera is an injectable progestin (hormone) that acts similarly to other progestin-only
                    contraceptives. Depo-Provera works by preventing the development of the egg and by changing the
                    cervical mucus, thus helping to prevent the sperm from reaching the egg.  One injection provides 12
                    weeks of protection so you must return to your health care provider every 12 weeks for another
                    injection.
                    Depo-Provera can be used safely and effectively as a contraceptive by most women.  Depo-Provera does
                    not protect against STDs, so always use a condom.

                     How effective is Depo-Provera?

                     Depo-Provera is greater than 99% effective in preventing pregnancy both in theory and in actual use.

                     What are the benefits?

• causes no serious complications such as those occasionally associated with
• estrogen-containing pills (contains no estrogen)
• provides highly effective, long acting protection against pregnancy
• convenient, does not interfere with intercourse
• decreases menstrual cramps in some cases
• reduced risk of PID, endometrial and ovarian cancers

                     What are the disadvantages?

• causes menstrual cycle irregularities for most users
• may decrease bone density
• may experience weight gain, water retention, breast tenderness
• long term lipid effects are unknown
• requires an injection
• provides no protection against sexually transmitted diseases (STDs)

                    Prescriptions for Depo-Provera are available at University Health Services, and injections can be given
                    at the health center.

                    Return to contraception main page.

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Last modified 6/20/01
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