I'm not sure if antipsychotics were ever the culprit, but I have been to a cardiologist long ago in the past and diagnosed with tachycardia and mitral valve prolapse, that causes a heart murmur and sometimes anxiety and tachycardia. Mitral valve prolapse is not that uncommon and is generally not a big deal for many. That cardiologist prescribed metoprolol.

During one of my psychiatric hospitalizations, they didn't have metoprolol on hand, so the psychiatrist switched me to propranolol, another beta blocker. It has been fine since. Both beta blockers were helpful. I no longer have issues with tachycardia as long as I take my beta blocker, even on antipsychotics. I need antipsychotics.

I have taken meds for akathisia in the past (Cogentin, Ativan). Actually, even propranolol is supposed to be helpful for akathisia, though my dose wasn't sufficiently so. I've since gone off the med that caused my akathisia and luckily my akathisia faded away.

Synthroid controls the hypothyroidism I developed from past Lithium use. Unfortunately, I need Synthroid even off Lithium. My thyroid damage is permanent. Synthroid works great.