Nexplanon: 3-Year Birth Control Implant Guide

Nexplanon: Birth Control Implant Information Guide

Nexplanon: Birth Control Implant Guide

What is Nexplanon?

Nexplanon is a small, flexible rod-shaped birth control implant inserted under the skin of the upper arm. It releases a hormone called etonogestrel and provides up to 3 years of continuous pregnancy prevention.

How Does Nexplanon Work?

Nexplanon prevents pregnancy by stopping ovulation (the release of an egg), thickening cervical mucus to block sperm, and thinning the uterine lining to prevent implantation. It is over 99% effective when properly inserted.

Insertion and Removal

Nexplanon must be inserted and removed by a trained healthcare provider. The insertion is quick, done under local anesthesia, and the implant can be removed at any time if birth control is no longer needed or if side effects occur.

Effectiveness and Duration

Nexplanon starts working within 7 days after insertion and remains effective for up to 3 years. It can be replaced with a new implant after that period for continued contraception.

Common Side Effects

  • Irregular menstrual bleeding
  • Headache
  • Weight gain
  • Breast tenderness
  • Acne

Most side effects are mild and may improve over time. Some users may stop having periods altogether, which is safe while using Nexplanon.

Advantages of Nexplanon

  • Highly effective (over 99%)
  • Long-term, up to 3 years
  • Reversible at any time
  • No daily maintenance
  • Safe for most women, including those who cannot take estrogen

Who Should Not Use Nexplanon?

Women with a history of blood clots, liver disease, unexplained vaginal bleeding, or breast cancer should consult a healthcare provider before choosing Nexplanon.

Frequently Asked Questions (FAQs)

Can Nexplanon be felt under the skin?

Yes, the implant can usually be felt with the fingers under the skin of the upper arm.

Does Nexplanon protect against STIs?

No, it does not protect against sexually transmitted infections. Use condoms for STI protection.

What happens after 3 years?

You can choose to have the implant removed or replaced with a new one for continued protection.

Sources / Scientific References:

  • Merck. Nexplanon (etonogestrel implant) Prescribing Information: Merck
  • U.S. Food and Drug Administration (FDA): FDA
  • Centers for Disease Control and Prevention (CDC) – Contraception: CDC
  • American College of Obstetricians and Gynecologists (ACOG): ACOG

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