I'm on both Risperidone and Seroquel and haven't gained weight with either of them.
And it is possible to lose weight when on psych meds. I'm on 6 different psych meds and through diet, have managed to lose 30 lbs and I'm still working on losing more.
But I know they can definitely affect appetite - when I started Valium, the most recent addition, I was seriously craving food, so it was really hard. But I stuck with my diet, and didn't gain.
splitimage
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"I danced in the morning when the world was begun. I danced in the moon and the stars and the sun". From my favourite hymn.
"If you see the wonder in a fairy tale, you can take the future even if you fail." Abba