There are 3 APs that are considered weight neutral they are abilify Geodon and Latuda...so if you feel the need to switch ask your doc if you can have one of those. Latuda is the newest so less is known about it but the drug co is pushing it pretty hard right now. Abilify is great at decreasing the prolactin effect but it works a little different it binds to like 90% of the D2 receptor but only activates it weakly most APs totally block the D2 but bind more in the 70-80% range leaving some natural signaling Geodon the only bad thing is you have to take it with meals because you don't absorb it correctly without food. There are others but if you're worried about weight I would specifically avoid zyprexa/olanzapine it is the worst for weight gain.