Attempts by government and law enforcement to curtail the drugA name for a wide variety of chemical substances capable of altering the function of your mind and body in significant ways. These can include over the counter prescriptions, alcohol, and controlled substances. Most drugs are either physically and/or psychologically habit-forming. trade and drug use by using heavy sentences and zero-tolerance policies. The most famous example of this was the “War on Drugs” in the 1980s.