Use of Etonogestrel Implant Beyond Approved Duration – A Case Report

Castro Carvalho, C; Silveira Reis, I; Machado, AI

http://hdl.handle.net/10400.17/4174

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Authors

Castro Carvalho, C

Silveira Reis, I

Machado, AI

Abstract(s)

The contraceptive implant is the most effective method of reversible contraception. Observational and trial data indicate that this method remains effective beyond the initially approved duration of use. We report a case of etonogestrel serum levels above the supposed threshold value for ovulation suppression nine years after implant insertion.