As early as the 17th century the Spanish used quinine from the bark of Cinchona trees to treat malaria after being … See more

Medicinal tonic water originally contained only carbonated water and a large amount of quinine. Most modern tonic waters contain comparatively less quinine, and are often enhanced by citrus flavors. As a result of the lower q… See more

Tonic water is often used as a drink mixer for cocktails, especially gin and tonic. Vodka tonic is also popular. Tonic water with lemon or lime juice added is often known as bitter lemon or bitter lime. It is popular for its signature bi… See more

Tonic water is known to cause fixed eruptions, which is a type of skin reaction to drugs, due to the quinine content. Various scientific journals have reported the repeated intake of tonic water can cause fixed erupti… See more

The quinine in tonic water will fluoresce under ultraviolet light. In fact, quinine will visibly fluoresce in direct sunlight against a dark background. The quinine molecules release energy as light instead of heat, which is m… See more

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