I love Rivella, they now make a vegan one too. Switzerland also has Cswiss which is a lot nicer than the CBD infused drinks they are making over here in the UK.

I am Swiss and Scottish, we have Rivella and Irn Bru respectively. In the UK we also have a drink called Lucozade which was interestingly designed as a medicine but was saved from liquidation (no pun intended) by the rave scene as they needed something that would keep you hydrated, not get you too drunk and helped with comedowns.