Cocain is regarded today as a major social evil and as a medical problem of vast proportions. Only a century ago, however, cacaine was believe to be a harmless stimulant and cure-all. Highly respectable scientists such as spychoanalyst Sigmund Freud experimented with cocaine. The original 1886 formula for Coca-cola included three parts coca leaves (the source of cocaine) to one part cala nut. The original Coca-cola was advertised not only as a refreshing beverage, but as a medicine to "cure all nervous afflictions-sick headache, neuralgia, hysteria, melancholy, etc.