Recognizing Drugs and Their Effects

Regulation of cannabis in Québec

Further the federal government’s decision to legalize cannabis and to the bill tabled on April 13, 2017, the Government of Québec has tabled a bill in the fall of 2017. For more information go to This link opens a new window..

List of Drugs and Their Effects

Drugs are classified according to their effect on the central nervous system. They are divided into 3 categories:

  • Disruptive substances/Hallucinogens
  • Depressants
  • Stimulants 


These drugs typically cause disorientation (distorted sense of space and time). They also affect the senses (sight and touch, for example), which alters perception.


These drugs typically impact the central nervous system, numbing the brain and slowing the body. Some of these drugs can also alter perception.


These drugs typically cause excitement and restlessness.

Was this page helpful?


Last update: July 21, 2017 10:01 AM


Changing our Perception of Homelessness Québec Health Booklet Health tips for the winter Anxiety disorders are real. So are the solutions.