Sigmund Freud - cocaine: initial interest in cocaine was medical. For the first time Freud tried cocaine in 1884 and was impressed by its action: the use of the substance to heal from depression, has given confidence. In the same year a young scholar writes "On the coca," which strongly recommends the use of cocaine as a local anesthetic, as well as a cure for asthma, digestive disorders, depression, neurosis. The future father of psychoanalysis has published several articles on the properties of cocaine, which describe in detail all the feeling caused by this substance. However, recent studies on this subject he wrote less enthusiastic about it. This is not surprising, because of cocaine abuse has died a close friend of Freud, Ernst von Flyayshl. Convinced that cocaine helps eliminate dependence on morphine, Freud undertook to treat a friend, heavily addicted to morphine. But something unexpected happened: the dependence on morphine was replaced by dependence on cocaine, followed by overdose and the patient died. But back to Sigmund Freud himself. Scientist so sincerely believed in the "healing" properties of a white powder, which allegedly helped him get rid of all his fears and complexes, which he became addicted to it. Freud was able to overcome the craving for potion, but it took no little time and effort.