Consumption of excessive quantities of drugs. A drug dose that is large enough to be toxic is considered an overdose. An overdose may be accidental or deliberate, and it may involve one or more of the following types of drugs: narcotics, uppers (stimulants), downers (depressants), mind altering drugs (LSD, PCP), alcohol, marijuana, or prescription drugs.
The clinical consequence of any excess dose of a drug (e.g., of a self-administered, potentially lethal dose of a drug of abuse, an antidepressant, a nonnarcotic pain reliever, or other medication). Drug overdose may be unintentional or deliberate. When such a dose results in coma or death, the person is said to have OD’d (“overdosed”).
The consumption of a drug in an excessively high quantity that could potentially lead to toxic consequences.