I take anti-anxiety medication, Fluoxetine, on a daily basis. For a heavy speaking day, I’ll take Propanolol and Baclofen. These work great for me, so I haven’t actually needed to try a dopamine antagonist yet. Those meds indirectly down-modulate dopamine anyway, so they kind of offer similar effects to a dopamine antagonist, just not as strong by directly blocking D2 receptors in the brain.