[Chemotherapy and psychotherapies. Attempt at integration].

After a brief historic reminder, the author reviews certain difficulties in integrating psychotherapeutic practice. These difficulties are within the global frame of association of techniques and therapists. Criticizing the bifocal tendency, the author justifies an integrated practice and conceptualisation in the area of severe mental disorders. Finally the author proposes elements of a general theory of psychotherapy permitting chemotherapy to find its place as an "armed psychotherapy" or "psychotherapy in reality".