Mechanisms of Action of Hormonal Emergency Contraceptives

  title={Mechanisms of Action of Hormonal Emergency Contraceptives},
  author={V. Leung and M. Levine and J. Soon},
  journal={Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy},
  • V. Leung, M. Levine, J. Soon
  • Published 2010
  • Medicine
  • Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy
  • Hormonal emergency contraceptives have been used to prevent unwanted pregnancy for more than 3 decades. The mechanisms of action of the regimen containing a combination of estrogen and progestin, known as the Yuzpe regimen, and those of the levonorgestrel regimen continue to be controversial, especially over the possibility that these regimens might act by interfering with implantation of the fertilized ovum. We performed a search of the PubMed (1949‐July 2009) and EMBASE (1980‐July 2009… CONTINUE READING
    25 Citations
    [Effect of levonorgestrel in the ovulation, endometrium, and spermatozoa for emergency oral contraception].
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    Emergency Contraception: Review and Update
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    Selective progesterone receptor modulators: an update
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    Ulipristal acetate: a new emergency contraceptive
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    Emergency contraception: an unresolved issue.
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    Mechanism of action of emergency contraceptive pills.
    • 41
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    Mechanism of action of hormonal preparations used for emergency contraception: a review of the literature.
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    Postfertilization Effect of Hormonal Emergency Contraception
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    Controversies in contraception
    • 16
    Emergency Contraception With Mifepristone and Levonorgestrel: Mechanism of Action
    • 210
    • PDF
    Effect of the Yuzpe regimen of emergency contraception on markers of endometrial receptivity.
    • 66
    • Highly Influential
    • PDF
    Levonorgestrel emergency contraception: a joint analysis of effectiveness and mechanism of action.
    • 38
    • PDF