[General principles of treatment in addictology].

General principles of treatment in addictology. Among all mental disorders, addictive pathologies are serious disorders. Their prognosis is severe. Their management is complex. It requires the evaluation of the addictive disorder, the psychiatric pathologies and the motivation. The follow-up must be adapted to the patient's motivation. By medications, it is traditional to oppose substitution and withdrawal strategies and risk reduction. Psychiatric comorbidities, frequent, are factors of aggravation of the dependency. They need parallel and integrated cares between addiction and mental health care systems. The place of hospitalization is reduced, support for families is essential.