Emergency contraception: A review

摘要: Emergency contraception (EC), also known as 'the morning after pill', or post-coital contraception, is a modality of preventing the establishment pregnancy unprotected intercourse. Both hormonal and an intrauterine form are available. Modern EC, with low side effects, was first proposed by Yuzpe in 1974. More recently, new regimen, consisting levonorgestrel administered alone, introduced found clinical trials to be more effective (if taken early possible), associated less effects than which it has gradually replaced. The WHO developed another regimen based on use selective progesterone receptor modulator (antiprogestin) mifepristone conducted different dosages. Intrauterine EC Lippes 1976. It advantage being applicable for almost week disadvantage greater complexity. In addition, this solely interceptive, acting implantation. Pregnancy rates reported following using device 300 mm2 copper consistently (0.1-0.2%).