Ugh ! Zyprexa and Seroquel are both hellish for weight gain... I refuse to take them ever , never, no way !
I am on Invega 2nd week now ..and it's been side effect free and I am eating less actually but that may be a combo of the med and Chia seeds .. Don't know for sure.
Your Pdoc should be aware of the weight issue .. I see no point in being mentally stable but gaining weight that could cause Diabetes and other Obese issues. But hey thats just my opinion.
I hope your able to find a med that works without the horrible side effects