I have been taking citalopram for a while now but am starting to get the same feelings back. I take 20mg daily. Is it normal for this to happen after a while and need to increase your dosage to 40mg? I am struggling to sleep, feeling paranoid and a bit jumpy for absolutely no reason at all. My mood is all over the place, easily irritated by things that normally wouldn't bother me at all and it's starting to get me down again.

Many thanks for any help anyone can offer. It is normal to take citalopram long term or do most people take it short term and then tend to wean off it?