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, because of the bitter taste of anti-malarial quinine tonic, British colonials in India mixed it with gin to make it more palatable, thus creating the gin and tonic cocktail, which is still popular today.

In France, quinine is an ingredient of an apéritif known as quinquina, or "Cap Corse," and the wine-based apéritif Dubonnet.
In Spain, quinine (also known as "Peruvian bark" for its origin from the native cinchona tree) is sometimes blended into sweet Malaga wine, which is then called "Malaga Quina".
In Italy, the traditional flavoured wine Barolo Chinato is infused with quinine and local herbs, and is served as a digestif.
In Canada and Italy, quinine is an ingredient in the carbonated chinotto beverages Brio and San Pellegrino.
In Scotland, the company A.G. Barr uses quinine as an ingredient in the carbonated and caffeinated beverage Irn-Bru.
In Uruguay and Argentina, quinine is an ingredient of a PepsiCo tonic water named Paso de los Toros.
In Denmark, it is used as an ingredient in the carbonated sports drink Faxe Kondi made by Royal Unibrew.

As a flavouring agent in drinks, quinine is limited to less than 83 parts per million in the United States, and 100 ​ᵐᵍ⁄ₗ in the European Union.
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, because of the bitter taste of anti-malarial quinine tonic, British colonials in India mixed it with gin to make it more palatable, thus creating the gin and tonic cocktail, which is still popular today.
In France, quinine is an ingredient of an apéritif known as quinquina, or "Cap Corse," and the wine-based apéritif Dubonnet. In Spain, quinine (also known as "Peruvian bark" for its origin from the native cinchona tree) is sometimes blended into sweet Malaga wine, which is then called "Malaga Quina". In Italy, the traditional flavoured wine Barolo Chinato is infused with quinine and local herbs, and is served as a digestif. In Canada and Italy, quinine is an ingredient in the carbonated chinotto beverages Brio and San Pellegrino. In Scotland, the company A.G. Barr uses quinine as an ingredient in the carbonated and caffeinated beverage Irn-Bru. In Uruguay and Argentina, quinine is an ingredient of a PepsiCo tonic water named Paso de los Toros. In Denmark, it is used as an ingredient in the carbonated sports drink Faxe Kondi made by Royal Unibrew.
As a flavouring agent in drinks, quinine is limited to less than 83 parts per million in the United States, and 100 ​ᵐᵍ⁄ₗ in the European Union.
Quinine