If you take or have taken any of the meds in the title (Rexulti, Vraylar, Ivnega or Saphris), how well have they worked for me, and have you gained weight from them?

I'm trying to get off Zyprexa which has made me gain about 40lbs which is not okay! The only thing is, Zyprexa is the drug that works best for me which is why I'm on it despite the weight gain, but if I can find something else that works that won't make me gain weight, that'd be great!