How many symptoms are required for cannabis intoxication diagnosis?

To diagnose cannabis intoxication, the criteria established in the DSM-5 specify that a person must exhibit at least two symptoms associated with recent cannabis use. These symptoms can include a range of effects such as increased appetite, dry mouth, fatigue, or impaired motor coordination, among others.

This requirement for two symptoms is designed to ensure that the diagnosis reflects a pattern of effects that significantly impact the individual, distinguishing casual use from more problematic use. Having only one symptom would not adequately represent the broad impact of cannabis intoxication, and symptoms must be observed during or shortly after the use of cannabis for the diagnosis to be valid. By requiring two symptoms, it helps in accurately assessing the level of impairment or intoxication the individual is experiencing.