Many psychiatrists recognize the fact that these medications are only adjuvants whose greatest value is to make the patient amenable to therapies based on psychological interventions, but such therapies are seldom used, while the medicinal approach is rarely crowned with success. One knows that psychoanalysis, one of the most elaborate forms of therapy currently available, rarely cures those afflicted with psychoses, and only attains to limited success with neuroses.

Mental Disorders & Spiritual Healing: Teachings from the Early Christian East 
Jean-Claude Larchet