2C-I, 2C-E, and 2C-B primarily cause stimulant and hallucinogenic effects, including increased visual, auditory, and tactile sensations. Moderate doses can cause full hallucinations. These drugs can also produce a euphoric high. 2C-B in particular has been described as ecstasy with a psychedelic experience. As such, these are popular “party” drugs found at nightclubs, dance parties, and raves. The United Nations classifies them as new psychoactive substances or NPS. The 2014 United Nations World Drug Report found that use of these substances increased by 50 percent from 2009 to 2012..