Psychotic behaviour is a symptom which reflects a distorted sense of reality and involves certain sensory functions or thought processes. Actual psychotic disorders have more extensive symptomatology and also certain criteria referring to the duration of the condition. Acute psychosis may develop secondary to a psychiatric or physical disease, medication or withdrawal symptoms. As concerns prognosis, treatment adherence is a more important factor than the speed at which psychotic symptoms are eliminated . Intoxication does not prevent the examination or referral of the patient, or admission for observation.