Drug abuse

Drug abuse has a wide range of definitions, all of them relating to the use, misuse or overuse of a drug for a nontherapeutic effect. Some of the most commonly abused drugs include alcohol, amphetamines, barbiturates, cocaine, methaqualone, opium alkaloids, and minor tranquilizers. Use of these drugs may lead to criminal penalty in addition to physical, social, and pyschologic harm.{{an|mosby}} Other definitions of drug abuse fall into four main categories:

See also

• Drug addiction
• Rat Park
• Doping