"i have been taking pristiq for 5 days.  this is the first antidepressant i have ever taken.  it is working great, though the first day or two i felt like i was taking diet pills.  my appetite is gone and i have lost 4 pounds in 5 days.  i have felt a good deal of nausea, but have not vomited. i&#039;m always thirsty and have trouble sleeping (which was a problem before pristiq), but my doctor gave me xanax to help me fall asleep. i feel better than i did before.  i hope it will work for you too.

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