I’d get another opinion. I won’t guess at your new doc’s reasons or motives, but I would definitely seek another opinion. Obviously your previous doctor felt there was no problem with you taking it.
I currently take citalopram at night and bupropion in the morning, but these are not for my ADHD symptoms specifically. They are meant to help me deal with my constant anxiety and low level depression which may or may not be related to my ADHD. However, neither treat my ADHD symptoms and aren’t meant to.
They work for my anxiety pretty well, but I can say from my own experience that they don’t do much for most of my other ADHD problems.