Chapter 9

Substance Use Disorders

Set C


A natural drug derived from the hemp plant, cannabis sativa.

Cannabis Use Disorder

Disorder usually develops over a period of time that is characterized by continuing increased use of cannabis and reduction in pleasurable effects.

Cannabis Intoxication

Symptoms of intoxication after recent use of cannabis begin with a “high” feeling followed by symptoms that include euphoria with inappropriate laughter and grandiosity, sedation, lethargy, impairment in short-term memory, impaired judgment, distorted sensory perception and impaired motor performance.

Cognitive Behaviour Therapy (CBT)

An intervention for changing both thoughts and behaviour. CBT represents an umbrella term for many different therapies that share the common aim of changing both cognitions and behaviour.

Contingency Management Therapy

Behavioural therapy which aims to help the individual identify environmental stimuli and situations that have come to control substance use.


A central nervous system stimulant that increases alertness and motor activity and combats fatigue; found in a number of different products, including coffee, tea, chocolate and some over-the-counter cold remedies and weight-loss aids.


A natural stimulant derived from the coca plant of South America which, after processing, is an odourless, white powder that can be injected, snorted or, in some forms (e.g. crack cocaine), smoked.

Cocaine Dependence

Occurs when the individual finds it difficult to resist using the drug whenever it is available and leads to neglect of important responsibilities.