A. Pattern of pathological use: intoxication throughout the day; use of cannabis nearly every day for at least a month; episodes of Cannabis Delusional Disorder.
B. Impairment in social or occupational functioning due to cannabis use: e.g., marked loss of interest in activities previously engaged in, loss of friends, absence from work, loss of job, or legal difficulties (other than due to a single arrest for possession, purchase, or sale of the substance).
C. Duration of disturbance of at least one month.
For more information, see Substance Abuse
Periodic cannabis use and intoxication can interfere with performance at work or school and may be physically hazardous in situations such as driving a car. Legal problems may occur as a consequence of arrests for cannabis possession. There may be arguments with spouses or parents over the possession of cannabis in the home or its use in the presence of children. When there are significant levels of tolerance, or when psychological or physical problems are associated with cannabis in the context of compulsive use, a diagnosis of Cannabis Dependence, rather than Cannabis Abuse, should be considered.