Celexa and kidney

I don't have any problem with Celexa. It's been great for me - I lost almost 50 pounds, my depression and especially the anxiety are way down. My problem is with the generic for Celexa, Citalopram. I tried taking it once before, a few months ago, and I started getting sore spots in my mouth, mostly on my tongue. I was in agony, and finally talked my doctor into changing the prescription back to Celexa, although she argued that generics are virtually the same as the name brand, and it would be impossible to have a reaction to the Citalopram and not the Celexa. I did go back on the Celexa, and after a couple of weeks all the mouth soreness was gone.

Recently, after a meeting with my doctor, she came to the conclusion that although the Celexa was working, for various reasons, she changed the dosage. When I got the new medication, it was the generic, but I thought this would be a good way to test whether the Citalopram really caused the mouth sores. After 3 days, my mouth hurts so bad, i can hardly eat or talk. I haven't found anyone else that has had the same experience.