a carbonated beverage containing lemon, lime, and quinine, an alkaloid obtained from the cinchona bark.

Fruit flavored carbonated water made with fruit extracts, sugar and quinine. more information - recipes

Tonic water (or Indian tonic water) is a carbonated soft drink flavoured with quinine. The drink gains its name from the medicinal effects of this slightly bitter flavouring. The quinine was added to the drink as a prophylactic against malaria, since it was originally intended for consumption in tropical areas of India and Africa where that disease is endemic.