Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


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


a drug that reduces excitability and calms a person


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


a narcotic drug that contains opium or an opium derivative


a narcotic that is considered a hard drug


a drug that temporarily quickens some vital process


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


amphetamine used in the form of a crystalline hydrochloride


a narcotic (alkaloid) extracted from coca leaves


a psychoactive drug that induces hallucinations or altered sensory experiences


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


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

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording