With a depressive disorder, feelings of sadness interfere with daily life and normal functioning, and cause pain for the sufferer. The major forms of clinical depression are major depressive disorder (MDD) and dysthymic disorder. Some forms of depression, such as psychotic depression, display different characteristics and symptoms to MDD, while others only develop under certain circumstances, such as postpartum depression and seasonal affective disorder.

This Datamonitor Healthcare Disease Coverage report contains Forecast, Treatment, Epidemiology, Marketed Drugs, and Pipeline modules.