title: Norplant--a contraceptive implant.
abstract: Norplant, 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.
mesh_terms: D000328:Adult; D004343:Drug Implants; D005260:Female; D006801:Humans; D016912:Levonorgestrel / Q000009:adverse effects / Q000494:pharmacology
chemical_list: D004343:Drug Implants; D016912:Levonorgestrel