Pristiq (Prestiq) works by restoring the balance of natural substances (neurotransmitters such as serotonin and
norepinephrine) in the brain. Pristiq
(Prestiq) may improve your mood, feelings of well-being, and energy level.
Pristiq (Prestiq) side effects may include drowsiness, dizziness, nausea, dry mouth, constipation, loss of appetite, weight loss, blurred vision, nervousness, trouble sleeping and excessive sweating.