Abstract

Emergency contraception, or postcoital contraception, is a modality of preventing pregnancy after unprotected sexual intercourse or to avert potential contraceptive failure. The controversy revolves around the definitions of pregnancy and induced abortion. If one utilizes the medical definition accepted by the WHO, pregnancy only begins with implantation; therefore, there can be no abortion without a pregnancy and emergency contraception can in no way be equated to an abortion. The problem is that – ethically at least – there is a contention that a new human life begins right after the fertilization process is completed through full syngamy. Thus, using these parameters, it becomes vital to ascertain exactly the mechanism of action of postcoital methods. Emergency contraception exists in two different forms: the hormonal and the intrauterine. Hormonal emergency contraception was first proposed by Yuspe in the form of 100 µg ethynyl oestradiol plus 500 µg levonorgestrel taken twice at a 12-h interval. At t...

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