Cocaine
Cocaine was widely touted as a cure-all in the late 19th century. Although outlawed in 1914, cocaine's popularity soared in the 1970s and '80s, and paved the way for an even deadlier epidemic.

Cocaine was widely touted as a cure-all in the late 19th century. Although outlawed in 1914, cocaine's popularity soared in the 1970s and '80s, and paved the way for an even deadlier epidemic.