The packaging of the Clatra is different - how to distinguish, is it not a fake?

If you bought the drug in a legal pharmacy, then there is practically no way that it would be a fake. Pharmacies verify the authenticity of medicinal products before dispensing them to the patient by reading the appropriate 2D code on the packaging and confronting it with the database. The packaging should also have a protection against opening. Changing the appearance of the outer packaging of the drug by the manufacturer is not uncommon, the same packaging as you in pharmacies have already been bought by other patients: https://www.gdziepolek.pl/opinie-i-pytania/85119/clatra-czy-mozna-laczyc-wellbutrin-z-clatra-i-pronasal I attach information that may interest you: https://www.gdziepolek.pl/artykuly/dlaczego-warto-kupowac-leki-tylko-w-aptece