Implanon® failure in an HIV-positive woman on antiretroviral therapy resulting in two ectopic pregnancies

Int J STD AIDS. 2011 Jul;22(7):413-4. doi: 10.1258/ijsa.2009.009469.


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.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Anti-HIV Agents / administration & dosage*
  • Antiretroviral Therapy, Highly Active / methods*
  • Contraceptive Agents, Female / administration & dosage*
  • Desogestrel / administration & dosage*
  • Desogestrel / adverse effects
  • Drug Antagonism*
  • Female
  • HIV Infections / drug therapy*
  • Humans
  • Pregnancy
  • Pregnancy, Ectopic / diagnosis*


  • Anti-HIV Agents
  • Contraceptive Agents, Female
  • etonogestrel
  • Desogestrel