Last reviewed 01/2018

Dysthymia is a lifetime diagnosis in which the individual experiences persistent (more than 2 years) of chronic low grade depression.

The symptomatology does not meet the full criteria for major depression and is not the consequence of a partly resolved major depression.


  • 1) Anderson IM et al (2000). Evidence-based guidelines for treating depressive disorders with antidepressants: a revision of the 1993 British Association for Psychopharmacology guidelines. J Psychopharmacol, 14, 3-20.