I heard a rumor which might be all BS but here it is.. Coke still uses coca leaves for flavoring but they remove the cocain from them, making coca cola the largest manufacturer of legal cocain which they then export.
When launched, Coca-Cola's two key ingredients were cocaine and caffeine. The cocaine was derived from the coca leaf and the caffeine from kola nut, leading to the name Coca-Cola! * Coca cocaine * The recipe called for five ounces of coca leaf per gallon of syrup, a significant dose! Coca-Cola once contained an estimated nine milligrams of cocaine per glass. In 1903 it was removed.