7 Up or Seven Up is an American brand of colorless lemon-lime–flavored non-caffeinated soft drink. The brand and formula are owned by Keurig Dr Pepper, although the beverage is internationally distributed by PepsiCo. 7 Up is commonly consumed cold – refrigerated or with ice. It is also used as a mixer for highball alcoholic lemon-lime soda cocktails, including the 7 and 7 (Seagram's 7 Crown and 7 Up) and CC and Seven (Canadian Club whisky and 7 Up). 7 Up is also used in both alcoholic and non-alcoholic punches.

Source: Wikipedia