RT Journal Article SR Electronic T1 â–¼Norplant - a contraceptive implant JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 17 OP 19 DO 10.1136/dtb.1994.32317 VO 32 IS 3 YR 1994 UL http://dtb.bmj.com/content/32/3/17.abstract AB Relevant BNF section: 7.3.2.2Norplant, a progestagen implant designed to provide contraception for five years, was launched in the UK in October 1993. Almost 3 million women world wide are using it. The manufacturer claims that Norplant is "one of the most effective and practical forms of contraception for any woman who wants long-term reliability, convenience and the opportunity to change her mind". In this article we assess its use.