New study estimates over 5.5 million US adults use hallucinogens

Hallucinogen use has increased since 2015, overall and particularly among adults 26 and older, while use decreased in adolescents aged 12–17 years according to a new study by Columbia University Mailman School of Public Health and Columbia University Irving Medical Center. Estimates of over 5.5 million people in the U.S. used hallucinogens in the past year in 2019, which represents an increase from 1.7% of the population ages 12 years and over in 2002 to 2.2% in 2019.