In our continuing series on illegal drugs, today we look at cocaine in all its available forms. Cocaine is derived from the leaves of the coca plant which is indigenous to South America. A young Sigmund Freud wrote of its properties and noted that it warded off hunger and sleep and increased powers of concentration. Latin Americans chewed coca leaves for centuries to ward off hunger and fatigue and it was even an ingredient of Coca Cola until the 1920s. In small amounts, cocaine increases alertness, produces feelings of euphoria, raises heart rate and blood pressure and causes insomnia and … Continue reading →