I just started Viibryd a few days ago, it threw me into a full blown panic attack yesterday, so I cut the dose in half per pdoc orders today and it was much better, less anxiety.

I was on Pristiq for a few weeks not too long ago and it did activate me to the point of slight anxiety, I remember being really stiff from being so up tight all day. Other than that I didn't have much more anxiety with it.