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Revista chilena de obstetricia y ginecología

versão impressa ISSN 0048-766Xversão On-line ISSN 0717-7526


BUSQUETS C., Maritza. CONTRACEPCION DE EMERGENCIA: EFECTO POSTFERTILIZACION DEL LEVONORGESTREL. Rev. chil. obstet. ginecol. [online]. 2003, vol.68, n.2, pp.163-180. ISSN 0048-766X.

For patients and physicians who believe that human life begins at fertilization, a method of birth control that has the potential for interrupting development after fertilization may not be acceptable. Doctors must be informed to answer the patient's question: does emergency contraception act by destroying a recently formed embryo? To assess this possibility in regard to levonorgestrel as an emergency contraceptive we present a brief abstract and critic analysis of each of those papers that are actually -up to july 2002- considered in the discussion about the mechanisms of action of levonorgestrel. We included three aditional papers about clinical effectiveness in regard to levonorgestrel and Yuzpe regimen that we considered important to help the physicians in making their own decision. We concluded a postfertilization effect cannot be excluded with certainty

Palavras-chave : Emergency contraception.

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