When it comes to cocktails, you can't get much more classic than a gin and tonic. And as far as the tonic aspect of that duo is concerned, the brand Fever-Tree is beloved by friend groups ...

There was a Scottish doctor prescribing a drink made of gin infused with Cinchona tree bark ... you'd have to consume 21.6 pints of Schweppes original tonic water every 8 hours, which would ...