I took Paxil for just a couple of days and it made me feel so wierd and foggy-headed that I had to stop it.

I take Effexor for anxiety and depression and the only trouble I've had is that I can't stay asleep all night (I take Lunesta to help with that). I have Generalized Anxiety Disorder and Effexor has helped me tremendously. I don't know how well it does for other types of anxiety.