What Meds


This disorder is characterized by a chronic, fluctuating mood disturbance with many periods of hypomanic symptoms. This disturbance must exist for at least 2 years' duration, and is categorized by periods of depression alternating with periods of hypomania, and normal moods in between.

Differential Diagnosis

A substance-induced mood disorder is distinguished from cyclothymia by the fact that a substance is required to be related to the mood disturbance.

Bipolar I Disorder with rapid cycling may resemble cyclothymia because of the frequent marked shifts in mood. However the DSM IV distinguishes the mood states in cyclothymia as lacking in the full criteria for a major depressive, manic or mixed episode disorder.

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