The manufacturer of the drug does not inform how to proceed in such a situation. Both drugs contain the same substances, but they differ in the dose of ethinyl estradiol. Sylvie 30 contains 30 mcg of ethinyl estradiol, and Sylvie 20 contains 20 mcg. In my opinion, using 2 tablets of Sylvie 20 over the weekend will be a much better solution than stopping using Sylvie 30 for two days, it will allow for less disruption of contraceptive protection. Due to the lack of access to full information about your health and the lack of information on which specific blister pills you intend to replace with Sylvie 20, it is difficult to determine to what extent this will affect the effectiveness of contraception. This situation should not have a significant impact on the effectiveness of the pills, but for the next 7 days or so, I encourage you to use an additional, barrier method of contraception (e.g. a condom) during possible intercourse. It is worth contacting your doctor and discussing this situation with him, based on full information about your health, he will recommend appropriate treatment. If you do not contact a doctor, the Gdziepolek.pl portal allows you to use teleconsultations:

https://www.gdziepolek.pl/telekonsultacja/z-ginekologiem

Check availability of Sylvie 20 and make a reservation here:

https://www.gdziepolek.pl/produkty/76334/sylvie-20-drazetki/apteki

I am sending you articles that may be interesting for you:

https://www.gdziepolek.pl/artykuly/antykoncepcja-hormonalna

https://www.gdziepolek.pl/artykuly/jak-prawidlowo-stosowac-antykoncepcje