What is it?

Depo-Provera is an injection of progesterone which a woman receives just four times a year for birth control.  Depo-Provera is prescribed by a doctor or nurse practitioner. 

How does it work?

Depo-Provera prevents pregnancy by:

• preventing the ovaries from releasing an egg;
• making the cervical mucous thick so the sperm can't swim inside; and
• making the lining of the uterus thin so the egg can't stick.

Advantages:

• Depo-Provera is very effective, about 99.7% if given every three months;
• it's private - no one knows that the injection has been given;
• menstrual periods are lighter or stop totally;
• women have less premenstrual syndrome (bloating, moodiness); and
• the risk of cancer of the uterus and ovaries is reduced.

Disadvantages:

• Depo-Provera costs up to $40 every three months at a pharmacy;
• some people are afraid of needles;
• a visit to the doctor or clinic is needed every three months for the injection;
• Depo-Provera may cause increased appetite or unexpected bleeding;
• Depo-Provera may affect your bones, especially if you have a slim build, don't exercise much, and smoke; and
• Depo-Provera may not be suitable for women who have a history of depression.

Remember:

• Depo-Provera does not protect you against sexually transmitted infections.  Use condoms every time; and
• when you stop Depo-Provera, normal periods will return.  Some women can become pregnant immediately, while most women can become pregnant within nine months of the last injection.

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