Trends in the Misuse of Tranquilizers, Sedatives, and Sleeping Pills by Adolescents in Spain, 2004-2014.

Purpose: Misuse of prescription medication has increased during the last 20 years among adolescents and young adults. We aimed to report the prevalence and factors associated with misuse of tranquilizers, sedatives, and sleeping pills (TSSp) in high-school students in Spain. We also analyzed misuse of these drugs during the decade 2004-2014.