I honestly do not thing any AP's or atypical's are weight neutral. Too many that claim that aren't weight neutral for all. Everyone reacts differently to meds.
I think the best thing to do is a weekly weigh in.. If you can't handle seeing the numbers ( like me) Step on backwards and have a trusted person to watch over and see if there is an increase.
MM

I know this is a hard decision for you. I hope you can find one that your willing to try.. Scarey stuff