Kareem uses cocaine recreationally. Kareem's drug of choice is a

Methamphetamine is an example of a

The minor tranquilizers are

Which of the following was actually used as an insecticide in the 1920s and 1930s?

Alcohol stimulates the release of _____, the brain's major depressant.

Opium and its derivatives duplicate the action of

John has tried every type of depressant drug he could find. Which of the following is a drug he has not tried?

Which of the following kills the most people in the United States every year?