General retail Over-the-counter drugs in the general retail class AV may be sold by any retailer. They are divided into three classes. Search within English part of Government. They are divided into three classes. Depending on their class, you can buy over-the-counter drugs at a pharmacy, chemist, supermarket or petrol station. The shop assistant will be able to give you advice and instructions on using the medication.Amsterdam is said to have two sides. There’s the charming side: quaint cobblestone streets that lead to picture-perfect canals lined with adorable gabled houses. And there’s the . Simon, this question is often asked on test1.ru have a look there and there are recommended places both in Amsterdam and by /post to uk (which is the cheaper . Simon, this question is often asked on test1.ru have a look there and there are recommended places both in Amsterdam and by /post to uk (which is the cheaper option, it seems) that other posters have used and recommend. Enjoy your trip to Amsterdam:) Report inappropriate content.