To @Magda:

In the case of parallel imported medicines, the information is included on the outer packaging. There is, m.in, the country of import, the import permit number.
To prevent the situation from happening again, it is worth paying attention to this information or asking the pharmacist for help the next time you make a purchase.

I also recently bought a Nuva ring and a circlet inside. Since I put it on, I've had bleeding for 14 days, and in addition, I have such a rash on my face that I didn't even have when I was growing up. It seemed the same, but it totally broke my cycle. On the original Nuva ring everything worked like clockwork, and my complexion was like that of a baby. I'm devastated. I wait until the end of the series and go back to the original. It's a pity that there is no information on the packaging that there is another product inside. Now two albums will go in josh, and I have to buy the original ones anyway.