A drug is any substance that changes the way a person thinks, feels, or behaves. Legal drugs like alcohol and tobacco are commonly used. Many people take prescription drugs like painkillers, sleeping pills, and anti-depressants under a doctor's supervision. However, many prescription drugs are misused.
Misusing drugs and using illegal drugs like cocaine, LSD, amphetamines, and heroin can cause problems in people’s lives. Drug use can also affect their health and relationships. Many people lose their jobs or have money problems.
To learn more about other drugs, click on these links.
For more information and to find an addiction services office near you, please call the
24-hour Addiction Helpline (Alberta only). For help to quit smoking or smokeless tobacco, call the
AlbertaQuits Helpline or go to
Current as of: August 20, 2019
Author: Poison & Drug Information Service, Alberta Health Services
This material is not a substitute for the advice of a qualified health professional. This material is intended for general information only and is provided on an "as is", "where is" basis. Although reasonable efforts were made to confirm the accuracy of the information, Alberta Health Services does not make any representation or warranty, express, implied or statutory, as to the accuracy, reliability, completeness, applicability or fitness for a particular purpose of such information. Alberta Health Services expressly disclaims all liability for the use of these materials, and for any claims, actions, demands or suits arising from such use.