Cocaine is regarded today as a major social.evil and as a medical problem of vast proportions.Only a century ago,however,cocaine was believed to be a harmless stimulant and cure-all.Highly respectable scientists such as psychoanalyst Sigmund Freud experimented with cocaine.the original 1886 formula for Coca-Cola was advertised not only as a refreshing beverage,but as medicine to "cure all nervous afflictions-sick headache,Neuralgia,Hysteria,Melancholy,etc