Anyone used Antipsychotics such as Olanzapine/Risperidone/Abilify/Saphris?

Anyone used Antipsychotics such as Olanzapine/Risperidone/Abilify/Saphris? Talking to my doctor and he said that it could be a decent idea to try them as they decrease the amount of Dopamine in your Basal Ganglia. Has anyone used them and were they effective in treating your stutter? If so what was the dose and did you experience any side effects?