What's new

An implant that has been in situ between 3 and 4 years can be changed if a pregnancy test is negative. If there has been unprotected sexual intercourse (UPSI) in the past three weeks a repeat pregnancy test should be considered 21 days after the UPSI. 

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.