Addiction, clinically referred to as Substance Use Disorder (SUD), is a complex and chronic medical condition recognized by the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). It involves the compulsive use of substances despite harmful consequences to health, relationships, and responsibilities.
According to the DSM-5, a person may be diagnosed with a Substance Use Disorder when they exhibit at least two or more of the following criteria within a 12-month period:
Using larger amounts or over a longer period than intended
Persistent desire or unsuccessful efforts to cut down or control use
Spending significant time obtaining, using, or recovering from substance use
Craving or strong desire to use the substance
Failing to fulfill obligations at work, school, or home
Continued use despite recurring social or interpersonal problems
Giving up important activities due to substance use
Recurrent use in physically hazardous situations
Continued use despite knowledge of physical or psychological problems caused or worsened by the substance
Tolerance (needing more of the substance to achieve the same effect)
Withdrawal symptoms when substance use is reduced or stopped
The severity of the disorder—mild, moderate, or severe—is determined by the number of criteria met.
Substance Use Disorder affects brain function and behaviour. It is treatable, and recovery is possible with the right combination of therapy, medical support, and long-term recovery care.