Developments and challenges in emergency contraception
Black, K.I.
Best Practice and Research. Clinical Obstetrics and Gynaecology 23(2): 221-231
2009
ISSN/ISBN: 1532-1932 PMID: 19211308 DOI: 10.1016/j.bpobgyn.2008.11.009Document Number: 205827
Emergency contraception (EC) methods, available in oral and intra-uterine forms, seek to prevent pregnancy after unprotected intercourse or contraceptive failure. Levonorgestrel EC is more effective and has fewer side effects than the previously used combined oral hormonal method; the Yuzpe regimen. In recent years, levonorgestrel has increased in use, and has become available over the counter in pharmacies in many countries. Compared with oral methods, the copper intra-uterine device offers greater protection against unplanned pregnancy but requires a clinical consultation. The much hoped for potential of EC methods to reduce unintended pregnancy is yet to be demonstrated at population level.
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