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Contraceptive Implant

Contraceptive Implant is a flexible plastic rod the size of a matchstick that is put under the skin of your arm. The rod releases the hormone etonogestrel slowly and prevents an egg from being released from the ovary. Nexplanon is a form of birth control that lasts for about 3 years. It is more that 99% effective at preventing pregnancy.


  • Lasts for about 3 years
  • Nothing to take or remember daily/weekly
  • Once removed the ability to become pregnant returns quickly
  • Virtually invisible
  • Effective within about 7 days after insertion


  • Irregular Bleeding
  • Requires a short office procedure to insert
  • Does not protect against sexually transmitted infections or HIV
  • Removal usually done in the office but may require MRI/Ultrasound if plastic rod has moved in the arm
  • Possible increased risk of heart attack/stroke
  • May be less effective when taken with certain antibiotics and seizure medications

Possible Side Effects

  • Irregular and unpredictable bleeding.  Most women have 15-20 days of random bleeding in 3 months
  • Headaches
  • Weight Gain
  • Mood Swings
  • Breast Pain
  • Acne

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