Birth Control Hormonal Methods (cont.)
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Injections and combination injections
An injection of the synthetic hormone medroxyprogesterone acetate (DMPA, Depo-Provera) can be administered every 3 months to inhibit ovulation and, thus, provide contraception. The injection is given at a doctor's office. Following the injection, the medication is active within 24 hours and lasts for 3 months.
Medically reviewed by Wayne Blocker, MD; Board Certified Obstetrics and Gynecology
Medically Reviewed by a Doctor on 7/29/2016
M Samra, MD
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Hormonal Methods of Birth Control - Injections
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