how effective is norplant

Norplant is a contraceptive

Norplant is a contraceptive implant, consisting of six small plastic rods that are surgically placed under the skin of the upper arm. The plastic rods remain in place for up to five years, during which time the rods slowly release progestin (a female hormone) into the body.

Norplant has an average failure rate of 2.3%. That means that every year, about 1 in 50 Norplant users experience an unexpected pregnancy.

The effectiveness varies depending on the characteristics of the user. Teens, women over 198 lbs, those who have had the implant for several years will experience more failures than listed above.

Norplant is no longer available in the US. Learn more at

Dr. Williams

Monnica Williams, Ph.D.
Sex Education Advisor.

STD Facts and Photos:
Free Pregnancy Testing Centers: 800-395-HELP.


The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational purposes and does not constitute the practice of medicine. We encourage all visitors to see a licensed physician or nutritionist if they have any concerns regarding health issues related to diet, personal image and any other topics discussed on this site. Neither the owners or employees of nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.