I met the same problem today, so I looked it up online. I checked the drugs I bought at present, but I didn't write three refined drugs, and the other one was fake. In addition, if the box has a security code, you can check the security code. I found it by checking the security code, and now my mood is hard to calm down. The children bought it in their home for two years, and today they found it different from what they bought today. I didn't know it was fake.