A member asked:

How long after the depo-provera provera (medroxyprogesterone) shot is given does it become effective?

2 doctors weighed in across 2 answers
Dr. Gregory Hines answered

Specializes in Family Medicine

Few days: It could take a few days to start working, though generally it is considered to work very quickly.

Answered 8/12/2012

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Depends...: If you get it right after your period starts, you are protected right away. Any other time, not until after your next period, so you need backup contraception.

Answered 8/12/2012

5.7k views

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