Implanon prevents pregnancy for up to 3 years. This medication is implanted under the skin of the inner side of your upper arm.

Implanon Overview


Implanon is a medication used to prevent pregnancy for up to 3 years. Implanon belongs to a group of medications called progestin hormone which causes changes in the lining of the uterus and the cervical mucus to keep the sperm from joining an egg and therefore prevents pregnancy.

Implanon is a flexible, plastic rod that contains the hormone, etonogestrel. It is implanted just under the skin of the inner side of your upper arm by a healthcare provider.

Common side effects of Implanon include changes in periods, nausea, weight gain, and headache.

Patient Ratings for Implanon

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Uses of Implanon

Implanon is a medication to prevent pregnancy for up to three years.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.



For more information on this medication choose from the list of selections below.

Implanon Drug Class

Implanon is part of the drug class:

Side Effects of Implanon

Serious side effects have been reported with Implanon. See "Drug Precautions" section.

Common side effects of Implanon include:

  • Change in periods (lighter, heavier, or absent)
  • Headache
  • Vaginitis (inflammation of the vagina)
  • Weight gain
  • Acne
  • Breast pain
  • Viral infections such as sore throats or flu-like symptoms
  • Stomach pain
  • Painful periods
  • Mood swings, nervousness, or depressed mood
  • Back pain
  • Nausea
  • Dizziness
  • Pain
  • Pain at the site of insertion

This is not a complete list of Implanon side effects. Ask your doctor or pharmacist for more information.

Tell your doctor if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.