”Current Clinical Guidance - Faculty of Sexual and Reproductive Healthcare” (på engelska) (PDF). www.fsrh.org. mars 2017. sid. 24. Arkiverad från originalet den 5 mars 2018. https://web.archive.org/web/20180305202809/https://www.fsrh.org/standards-and-guidance/current-clinical-guidance/emergency-contraception/. Läst 5 mars 2018. ”7.3 LNG-EC LNG-EC inhibits ovulation, delaying or preventing follicular rupture and causing luteal dysfunction. If taken prior to the start of the LH surge, LNG inhibits ovulation for the next 5 days, until sperm from the UPSI for which it was taken are no longer viable.33 In the late follicular phase, however, LNG-EC becomes ineffective while UPA-EC is still able to delay ovulation.24 Although post-ovulation effects of LNG-EC have been suggested,34 subsequent studies have not shown a significant EC effect of LNG-EC administered after ovulation.4,5 No effect on endometrial receptors was seen in two small studies.35,36In vitro, LNG-EC did not impair endometrial receptivity or the attachment of human embryos.37”
”Current Clinical Guidance - Faculty of Sexual and Reproductive Healthcare” (på engelska) (PDF). www.fsrh.org. mars 2017. sid. 24. Arkiverad från originalet den 5 mars 2018. https://web.archive.org/web/20180305202809/https://www.fsrh.org/standards-and-guidance/current-clinical-guidance/emergency-contraception/. Läst 5 mars 2018. ”7.3 LNG-EC LNG-EC inhibits ovulation, delaying or preventing follicular rupture and causing luteal dysfunction. If taken prior to the start of the LH surge, LNG inhibits ovulation for the next 5 days, until sperm from the UPSI for which it was taken are no longer viable.33 In the late follicular phase, however, LNG-EC becomes ineffective while UPA-EC is still able to delay ovulation.24 Although post-ovulation effects of LNG-EC have been suggested,34 subsequent studies have not shown a significant EC effect of LNG-EC administered after ovulation.4,5 No effect on endometrial receptors was seen in two small studies.35,36In vitro, LNG-EC did not impair endometrial receptivity or the attachment of human embryos.37”
