Switching From SSRI to Desvenlafaxine on Cognitive Functioning

Patients included in the study will receive antidepressant treatment with desvenlafaxine. The switch from SSRI to desvenlafaxine will coincide with the baseline visit (Visit 0). The dose of desvenlafaxine will be established based on clinical judgment. As the approach will be naturalistic, the inclusion in this study will not influence the clinical choice, hence changes in the pharmacological strategy will be permitted.