Have you thought about something like this? -->
https://www.mind.org.uk/information-...ntipsychotics/
If dystonia is causing you excruciating pain, then maybe you can talk to your pdoc about exploring those alternative options?
IMO, antipsychotics don't work 100% of the time anyway, regardless if we get side effects or not. So it's always good to come up with healthy coping mechanisms that you can use when you're in a crisis.