PCP, also known as phencyclidine and angel dust, was originally developed as a general anesthetic but became a popular substance in the 1960s. It’s listed as a Schedule II drug in the United States, which makes it illegal to possess. Like wide-leg jeans, PCP’s popularity comes and goes. It’s become a common club drug in the last couple of decades and produces effects similar to other dissociative substances, like special K. To get an idea of how powerful it is, just look at the other slang terms for it: elephant tranquilizer horse tranquilizer embalming fluid rocket fuel DOA (dead on...