Before becoming ill with me/cfs I wasn't depressed, but since finding out this is what I have, I did start to get quite depressed, not surprisingly. So I have been taking 20mg of citalopram for six months. During this time I have put on nearly a stone in weight! Admittedly I now can't do much exercise wise, and have to sit /lay down alot of the time but I was wondering if the antidepressants were causing weight gain too? I read of other people talking citrolopram who don't have cfs and are exercising a lot, who all say they have put on weight with it. I am considering coming off it, but not sure how I will be. Does everyone with this illness take antidepressants? Does anyone else think that they have gained weight because of them?