Since its introduction in 1999, Implanon® remains one of the preferred contraceptive choices for many women as it offers a highly effective means of long-term contraception for three years that does not rely on adherence. Like all hormonal contraceptives, certain hepatic enzyme-inducing drugs may reduce its efficacy. We present an interesting case of an HIV-positive woman on antiretroviral therapy having tubal pregnancies on two separate occasions with Implanon in place.
AgrawalA, RobinsonC. An assessment of the first 3 years' use of Implanon in Luton. J Fam Plann Reprod Health Care2005;31:310–2
6.
Harrison-WoolrychM, HillR. Unintended pregnancies with the etonogestrel implant (Implanon): A case series from postmarketing experience in Australia. Contraception2005;71:306–8
AdetunjiAM, LakshmiS, PatrickH. Early contraceptive failure of Implanon in an HIV-seropositive patient on triple antiretroviral therapy with zidovudine, lamivudine and efavirenz. J Fam Plann Reprod Health Care2007;33:277–8
