Implanon Efficacy, Safety and Tolerability
n No pregnancies in 1,200 women-years of exposure
n Good safety profile
n Irregular bleeding is most common adverse effect
n Requires clinician visit for initiation and
discontinuation
n Single implant systems using newer progestins may
solve some of the adverse effects and problems
presented by earlier implants
Zheng SR, et al. Contraception. 1999;60:1-8.
Croxatto HB, et al. Hum Reprod. 1999;14:976-81.