| Etonogestrel subcutaneous implant | |
|---|---|
 | |
| Background | |
| Type | ? |
| First use | ? |
| Trade names | Nexplanon |
| Pregnancy rates (first year) | |
| Perfect use | ? |
| Typical use | ? |
| Usage | |
| Duration effect | 3 years |
| Reversibility | Immediately reversible |
| User reminders | ? |
| Advantages and disadvantages | |
| STI protection | No |
Theetonogestrel implant, also called thecontraceptive implant, or known by trade namesNexplanon orImplanon is one type of progestin-releasing birth control device implanted under the skin. It is approved for up to three years of use, but may be effective for up to five years.[1]
The etonogestrel implant is used to prevent pregnancy for up to three years. It is not typically used to controlheavy orabnormalmenstrual bleeding. It is safe and effective in people who have previously been pregnant, are breastfeeding, or have never been pregnant.[2] There is no known decrease in efficacy in people withoverweight orobesity.[3]
There are very few relative or absolutecontraindications to the etonogestrel implant. Activehepatocellular carcinoma and a history ofbreast cancer more than 5 years prior to insertion are listed as relative contraindications. Active breast cancer is listed as an absolute contraindication.[2]
Rarely, the device may migrate out of its typical location under the skin of the upper arm. As of June 2024, 148 cases of migration were reported in the medical literature, including to thepulmonary vessels, other blood vessels, and outside of the blood vessels.[4]