I've been on 20mg Citalopram for 3 weeks now (for anxiety and depression) and I started off with quite bad side effects. The first day I felt really so bad (really like "on drugs" and out of control) that I almost called the Dr to say I couldn't take another one. But I came on MN and it really helped me to read other peoples experiences and convinced me to carry on ....anyway I wanted to post my experience so anyone with similar can have some hope..
First day- felt really ill, both physically and mentally.
First week - Felt sick, completely lost my appetite (ate one banana a day for 3 days), had a horrible metallic taste in my mouth all the time, couldn't sleep (so felt really tired all day), felt like my pulse was racing, even more anxious, felt restless, felt detached from the world like I wasn't quite part of it.
Second week - started to improve, less anxious but having good day then bad day.
Third week - not feeling physically ill any more. And much more like more old self mentally. In fact a couple of things happened this week (lost my credit cards) that would have put me into a panic just before I started the ADs but I was able to cope with them.
I think they're definitely helping me. My only concern is how I ever come off them as my anxiety is just me so I don't see how it wouldn';t just back...but anyway at least another 6 months before I have to worry about that!
Sorry for the long post & good luck to the rest of you.