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What exactly is the shot, used for contraception? How does it work? How long does it last? Are there any side effects? Can anyone use it?

6 doctors weighed in
Marianne DiNapoli
Obstetrics & Gynecology
5 doctors agree

In brief: Depo (hormone)

The contraception shot is known as depo-provera or dmpa.
It is a hormone similar to one made by the body called progesterone. It works primarily by preventing ovulation, the release of an egg from the ovary. One shot lasts for 3 months. Possible side effects: changes in menstruation, weight gain, and headache. Depo is not right for everyone - discuss with your dr. If this is a good choice for you.

In brief: Depo (hormone)

The contraception shot is known as depo-provera or dmpa.
It is a hormone similar to one made by the body called progesterone. It works primarily by preventing ovulation, the release of an egg from the ovary. One shot lasts for 3 months. Possible side effects: changes in menstruation, weight gain, and headache. Depo is not right for everyone - discuss with your dr. If this is a good choice for you.
Marianne DiNapoli
Marianne DiNapoli
Answer assisted by Marianne Di Napoli, Medical Student
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