dizziness, Nausea, headache,
Vomiting, irritability, insomnia, Diarrhea, anxiety. A gradual reduction, rather than abrupt cessation is recommended. http://pi.lilly.com/us/cymbalta-pi.pdf Discontinuation symptoms have been reported when switching patients from other antidepressants, Including Effexor XR (Venlafaxine) to PRISTIQ (Desvenlafaxine) . Tapering of the initial drug may be necessary to decease symptoms. http://labeling.pfizer.com/showlabeling.