What is the effectiveness of Elin tablets?

Elin is a two-component contraceptive pill, for this class of products is appropriate high efficiency in preventing pregnancy evaluated at more than 99% with proper use. However, the manufacturer does not provide an exact Pearl index (a parameter indicating the number of women using a given method who became pregnant during the year). Cases of pregnancy when taking hormonal pills are rare (this method is not 100% certain, regardless of the type of drug), but a lot depends on the patient's discipline and whether she uses the method correctly. I enclose additional information: https://www.gdziepolek.pl/artykuly/jak-prawidlowo-stosowac-antykoncepcje https://www.gdziepolek.pl/artykuly/jakie-leki-oslabiaja-skutecznosc-antykoncepcji