Effexor (an SNRI as mentioned above) is also a tough one to get off, compared to
other ADs. Lexapro, Zoloft, Celexa and
Prozac are typically the easier tolerated ADs (again, everyone is different).
I personally would recommend sticking with the SSRIs vs the SNRIs for anxiety, because due to the fact that their primary mechanism of action affects norepinephrine (aka adrenaline), they are quite activating, and can cause more anxiety.