aggression, anxiety, balance issues , blurred vision, brain zaps, concentration impairment, constipation, crying spells, depersonalization, diarrhea, dizziness. electric shock sensations, fatigue, flatulence, flu-like symptoms, hallucinations, hostility, highly emotional, indigestion, irritability, impaired speech, insomnia, jumpy nerves, lack of coordination, lethargy, migraine headaches / increased headaches, nausea, nervousness, over-reacting to situations, paranoia, repetitive thoughts or songs, sensory & sleep disturbances, severe internal restlessness (akathasia), stomach cramps, tremors, tinnitus (ear ringing or buzzing), tingling sensations, troubling thoughts, visual hallucinations / illusions, vivid dreams, speech visual changes, worsened depression

What is Desvenlafaxine? (Pristiq)

Pristiq (Desvenlafaxine) is an antidepressant of the Serotonin Norepinephrine Reuptake Inhibitor class and is the synthetic form of the major active metabolite of Effexor (Venlafaxine), and is being targeted as the first non-hormonal treatment for menopause.  Effexor lost its patent protection in August 2006 and Pristiq was approved In January 2007.  In the European Union, Desvenlafaxine has not been approved for any use. The Committee for Medicinal Products for Human Use stated the effectiveness had not been shown convincingly. Pristiq has been implicated with higher rates of withdrawals (discontinuation syndrome) than other SSRI and SNRI antidepressant medications due to its relatively short half-life.  The manufacture states discontinuation symptoms may occur, especially when therapy is stopped suddenly.
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*Because prescription medications can cause severe withdrawal reactions, do not stop taking any medication without first consulting your physician. The decision to taper any medication should be discussed with your doctor and done with their consent and support. More...