There was originally 5 oz. of coca leaves per 5 gallons of Coca-Cola Syrup

Pemberton called for five ounces of coca leaf per gallon of syrup, a significant dose; in 1891, Candler claimed his formula (altered extensively from Pemberton's original) contained only a tenth of this amount. Coca-Cola once contained an estimated nine milligrams of cocaine per glass. In 1903, it was removed.[60] @Curionic