A drug overdose (or simply overdose or OD) is the ingestion or application of a drug or other substance in quantities much greater than are recommended. Typically it is used for cases when a risk to health will potentially result. An overdose may result in a toxic state or death.
During the last years of the millennium, between 6,000 and 7,000 Europeans died each year from an overdose, generally of heroin. The number of such deaths peaked in the early 1990s in most EU countries and was falling since then.
Those addicts who inject themselves with drugs have a 20 to 30 times higher risk of dying prematurely than those of equal age who do not take drugs.