Summary
Warning
What's new
The available evidence suggests a possible association between current or recent use of hormonal contraception (including progestogen-only implants) and a small increase in risk of breast cancer; absolute risk remains very small.
Introduction
Nexplanon is a progestogen only subdermal implant containing 68mg etonogestrel with a 3-year duration of action. It is radio-opaque.
Mode of Action
The primary mode of action is to prevent ovulation.
Dosing Interval
The implant is normally inserted into the nondominant upper arm and should be removed or replaced after three years.