Research Evidence > Search Glossary

A B C D E F G H IJ K L M N O P Q R S T U V WX YZ
Search For in Clear Search
O
Overdose

The use of any drug in such an amount that acute adverse physical or mental effects are produced. Deliberate overdose is a common means of suicide and attempted suicide. In absolute numbers, overdoses of licit drugs are usually more common than those of illicit drugs. Overdose may produce transient or lasting effects, or death; the lethal dose of a particular drug varies with the individual and with circumstances.

See also: intoxication; and death.

WHO Lexicon of alcohol and drug terms