Hello there! I have an 18 year old son and he went into depression after failing in his medical exams last year. We counseled him in every possible way we can but none had any impact on him. Finally we had to seek a psychiatrist’s advise on him who prescribed him pristiq. He has been on pristiq for 2 days now. I want to know the side-effects of pristiq? People please come out with information on pristiq?