Quinine giving a further half dose. No injectable preparation of quinine is licensed in the US; quinidine is used instead. Quinine is a flavor component of tonic water and bitter lemon drink mixers. On the soda gun behind many bars, tonic water is designated by the letter "Q" representing quinine. According to tradition, the bitter taste of anti-malarial quinine tonic led British colonials in India to mix it with gin, thus creating the iconic gin and tonic cocktail, which is still popular today. Nowadays, the amount of quinine in tonic is much lower and drinking it against malaria is useless. Quinine
Gin and tonic an "Evans". Although the origins of the use of lemons are unknown, their use dates back at least as far as the late 1930s. In addition lemons are often more readily available, and cheaper to purchase, than limes. The use of lemon or lime is a debated issue and while leading brands, such as Gordon's, Tanqueray and Bombay Sapphire recommend the use of lime, the founder of Fevertree Tonic Water prefers lemon. Some people garnish a Beefeater-based gin and tonic with a slice of orange, to complement the Seville oranges Beefeater uses in its botanicals. A gin and tonic served