The history of cocaine in America can be traced to the late 19th century. After the discovery of its physiological and psychological effects, cocaine figured in consumables as diverse as hay fever remedies, local anaesthetics and soft drinks. The development of its different usages as well as eventual control of its use through restrictive legislation followed a different pattern in America from that in Europe. In the United States, national laws to control drugs faced constitutional obstacles until the era of World War I. Initially acclaimed as an ideal tonic, within two decades of its introduction in the mid 1880s cocaine was perceived as an extremely dangerous drug. By the 1930s cocaine had declined in use and in the 1960s, when it gradually emerged again, almost no public memory existed of the earlier 'epidemic'. Once again this substance evolved into a threatening and seductive hazard with some similarities to the earlier episode.