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medicines

drugs that are used to treat or prevent disease or other conditions

over the counter drug

Medicine available without a written order from a doctor

illegal drug

A chemical substance that people of any age cannot lawfully manufacture, possess, buy or sell.

prescription drug

a drug that is available only with written instructions from a doctor or dentist to a pharmacist

drug misuse

The taking of drugs for its medical purpose, but not in the appropriate amount, frequency, strength, or manner.

drug abuse

excessive use of drugs

psychoactive drug

a drug that can produce mood changes and distorted perceptions

side effect

a secondary and usually adverse effect of a drug or therapy

drug antagonism

occurs when each drug's effect is canceled out or reduced by the other

drug synergism

occurs when drugs interact to produce effects greater than those that each drug would produce alone

protective factor

anything that keeps a person from engaging in harmful behavior

depressant

a drug that reduces excitability and calms a person

barbiturates

drugs that depress the activity of the central nervous system, reducing anxiety but impairing memory and judgment

opiate

a narcotic drug that contains opium or an opium derivative

heroin

a narcotic that is considered a hard drug

stimulant

a drug that temporarily quickens some vital process

amphetamines

drugs that stimulate neural activity, causing speeded-up body functions and associated energy and mood changes

methamphetamine

amphetamine used in the form of a crystalline hydrochloride

cocaine

a narcotic (alkaloid) extracted from coca leaves

hallucinogen

a psychoactive drug that induces hallucinations or altered sensory experiences

marijuana

a strong-smelling plant from whose dried leaves a number of euphoriant and hallucinogenic drugs are prepared

club drugs

ecstasy, GHB, and Rohypnol are examples of club drugs, These drugs are all used at "rave" parties and are sometimes associated with date rape

inhalant

a medication to be taken by inhaling it

therapeutic community

a residential treatment center where former drug abusers live together and learn to adjust to drug-free lives

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