Treating psychosis involves education, counselling, medication, close monitoring of symptoms, stress management, and a strong, supportive environment.

The Psychotic Disorders Program at the Douglas Institute provides services to adults aged 18 to 65 with schizophrenia or other forms of psychoses, with the exception of the Prevention and Early Intervention Program for Psychoses (PEPP-Montréal), which is designed for people aged 14 to 30.

The Anxiety Disorders Clinic is a superspecialized (third-line) consultation, assessment and treatment service for people between the ages of 18 and 65 who suffer from one or multiple anxiety disorders.

The Depressive and Suicide Disorders Program is a superspecialized (third-line) service for youth and adults who suffer from refractory and/or recurrent major depressive disorder with or without the presence of suicidal behaviour. The program offers cutting-edge treatment for clients and provides support to families to help them interact with the person in difficulty.

The Bipolar Disorders Program is a superspecialized (third-line) consultation and treatment service for adults aged 18 to 65 who suffer from refractory bipolar disorders.

The Mood, Anxiety and Impulsivity Disorders Program at the Douglas Institute provides care to people aged 18 to 65 years with a mood disorder such as Bipolar disorders or Depressive and suicide disorders.

There are three external service points in the geriatric psychiatry program.

The Geriatric Psychiatry Program at the Douglas Institute provides services to clients aged 65 and older and to adults younger than 65 with a geriatric profile. The program covers psychiatric diagnoses such as: mood disorders anxiety di

Outpatient clinics for children 18 and undre include the Pervasive Developmental Disorders (PDD) Diagnostic Clinic, the Depressive Disorders Clinic and the Child Psychiatry Outpatient Clinic.

The Child Psychiatry Program at the Douglas Institute offers a range of bilingual services to youth aged 0 to 17 years and their families.