Related Experiment Video
Updated: Aug 26, 2026

Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
Published on: August 1, 2025
[Psychoactive drug use in school age adolescents, Brazil]
José Luiz Guimarães1, Pedro Henrique Godinho, Rubens Cruz
1Departamento de Psicologia Experimental e do Trabalho, Faculdade de Ciências e Letras, Universidade do Estado de São Paulo, Assis, SP, Brazil. jluiz@assis.unesp.br
Abstract:
To quantify psychoactive drug use and investigate use-related variables among students of Assis, Brazil, a questionnaire was administered to collect sociodemographic data and identify the pattern of non-medical use of psychoactive drugs in 20% of public and private school students. The largest consumption indexes for lifetime use were seen for alcohol (68.9%) and tobacco (22.7%). Drugs most often used were: solvents (10.0%); marijuana (6.6%); benzodiazepines (3.8%); amphetamines (2.6%); cocaine (1.6%); and anticholinergics (1.0%).
Related Concept Videos
An Overview of Psychoactive Drugs
Stimulants such as cocaine, amphetamines, and nicotine enhance brain activity, leading to increased alertness, attention, and energy. These drugs typically raise heart rate, blood pressure, and body temperature. While they can induce feelings of euphoria, their misuse can result in severe health...
Drug Abuse and Addiction: Pharmacological Phenomena
CNS Stimulants: Psychedelic Agents
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
Drugs Affecting Neurotransmitter Release or Uptake
Drugs Affecting Neurotransmitter Synthesis
