I was on clozapine for just over a year. I put 3 stone in this time. I’m currently trying to lose the weight but I’ve changed my antipsychotic medication to quetiapine. I’ve been on quetiapine before and it worked well for me but I’m on a really high dose. I know one of the side effects of quetiapine is weight gain but I’m going to try my hardest to loose the weight. Since changing I seem to have more energy and I’m sleeping less.