Are you referring to just akathisia, or have you also experienced a dystonia or tardive dyskinesia (TD)? For akathisia, there are other options than just beta blockers. Cogentin and I think one or two others, are examples. I was once on Cogentin, but it gave me such severe constipation that I had to stop. Plus dry mouth.

I have no problem taking beta blockers, but they simply weren't effective at calming my akathisia. They did help my medication induced hand tremors, but they are a different animal. Benzos also helped calm past akathisia, but nearly well enough. Plus, I don't think benzos are a good strategy.

For tardive dyskinesia, I recently saw some TV advertisements for new medications. Ingrezza was the most advertised. I've never had TD, but did briefly have a minor dystonia. My psychiatrist simply took me off the medication that caused it. It was a 1st generation antipsychotic.

Have you ever tried Seroquel (quetiapine) or Seroquel XR? I ask because it's known to be less likely to cause akathisia (and other EPS) or hyperprolactinemia than other antipsychotics. This is absolutely the case for me. Most all other APs I tried (a lot) caused one of these.