Dr Pepper is a caramel-colored, carbonated soft drink marketed in North America by Cadbury Schweppes Americas Beverages (CSAB), a unit of Cadbury Schweppes.

Unlike Coca-Cola and Pepsi, Dr Pepper is not marketed as a cola. Dr Pepper's flavor is allegedly derived from a mixture of soda fountain flavors popular when the drink was first devised. A partial list of these flavors can be seen at the bottling plant in Dublin, Texas, although the formula itself (with its twenty-three ingredients) is a closely guarded secret.

http://www.drpepper.com/