Search results for "Emergency contraception"
showing 2 items of 2 documents
Does levonorgestrel emergency contraceptive have a post-fertilization effect? A review of its mechanism of action.
2016
Background: Recent studies have identified that levonorgestrel administered orally in emergency contraception (LNG-EC) is only efficacious when taken before ovulation. However, the drug does not consistently prevent follicular rupture or impair sperm function. Objective: The present systematic review is performed to analyze and more precisely define the extent to which pre-fertilization mechanisms of action may explain the drug's efficacy in pregnancy avoidance. We also examine the available evidence to determine if pre-ovulatory drug administration may be associated with post-fertilization effects. Conclusion: The mechanism of action of LNG-EC is reviewed. The drug has no ability to alter…
La objeción de conciencia farmacéutica a la píldora postcoital
2003
The article represents a taking of position regarding the matter of the conscience objection towards the morning-after pill (MAP). The MAP is considered like an emergency contraception that the woman can take within the 72 hours from the sexual intercourse. The mechanisms of action of the product can be the following: a. to avoid the ovulation; b. to prevent the fusion between oocyte and sperm after the ovulation; c. to make impossible the implant of the embryo in the uterus. The author questions in the article if the MAP is abortive and, in this case, explicits the fundamental points of the Spanish law about the conscience objection. It is not difficult to ascertain that the MAP acts as co…