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How long does it take for the Depo-Prevera shot to take afffect once it's administered?

Responses (1)

Rajive Goel 8 Oct 2010

If administered within the first 5 days after the onset of a normal menstrual period, medroxyprogesterone is effective from the day of injection. When medroxyprogesterone is given later in the menstrual cycle it may not be effective for the first 3 to 4 weeks after the injection and another method of contraception (nonhormonal) should be used during this time.

However, please seek more accurate info from the doc/gynecologist who prescribed or suggested to take the shot of Depo-Provera, take care, hope the info helps?

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