Can Flucofast, Diemono and Zyrtec be used together?

The drugs you are asking about contain Dienogest (here: Diemono) and Fluconazole (here: Flucofast). The use of both drugs at the same time leads to an increase in the effect of dienogest and increases the risk of side effects. Cases of pregnancy and intermenstrual bleeding have been documented with concomitant use of Fluconazole with oral, combined contraceptives. The use of additional and/or alternative methods of contraception should be considered when these medicines are used concomitantly. If medicines have been prescribed by different doctors, a consultation is indicated to determine whether these medicines can be used simultaneously and, if so, whether there is a need to change the recommendations on how to administer them. If the drugs were prescribed by the same doctor, please follow the dosage regimen. Please tell your doctor if you have any alarming symptoms. I enclose additional information that may be helpful: https://www.gdziepolek.pl/artykuly/infekcje-intymne-jak-sobie-poradzic https://www.gdziepolek.pl/artykuly/jakie-leki-oslabiaja-skutecznosc-antykoncepcji