How well does Norplant work?
Norplant is a highly effective contraceptive, with an overall failure rate of 0.2 pregnancies per 100 women years (failure rate for 100 women using the method for one year). Most pregnancies associated with Norplant use are already present (but unrecognized) at the time of insertion. Accordingly every effort should be made to exclude pregnancy before Norplant insertion.
