The Doctor Valenzuela, think the contraception pill is effective in determinates cases, depending of days take the pill before the ovulation. If the women took the LNG EC between 0-24 h postcoitus, the maximal effectiveness should be 56.1%. But, if this pill is used like an anovulatory drug, the effectiveness should be 100%.

The Doctor Croxato have several objections about this study, because didn’t have a description of the mechanism of action about the LNG EC. Also, he says the probabilities of pregnancy wasn’t calculated clinically, but based on detection of hCG. And the real probabilities are lower. Another objection of this doctor is about the erroneous assumption of which day of the six fertile days sexual intercourse took place. In another hand, the effects of LNG upon cervical mucus and sperm migration aren’t well-documented.

The debate about levonorgestrel is the strictly preovulatory vs. preovulatory and postovulatory effects in emergency contraception of this pill.

I think, like a lot of pills, the effect of this pill isn’t strictly preovulatory. Because, is a medicine, with different substances composing it. And these components, maybe, can affect in every period of life to the organism. And I think also in the postovulatory.

Finally, respect of government, in the law says: The constitution guarantee to all people: the right of life, and physical and psychological integrity of each person. The law protects the life of newborn. But, actually isn’t work because this pill is defined like “antiimplantatoria”, not like abortion pill (despite being this last). Is just a semantic recourse that permits undermine law.