Risperidone, sold under the brand name Risperdal among others, is an atypical antipsychotic[2] used to treat schizophrenia and bipolar disorder,[2] as well as irritability associated with autism.[9] It is taken either by mouth or by injection (i.e., subcutaneous or intramuscular).[2] The injectable versions are long-acting and last for 2–4 weeks.[10]
Also, the side effects include something called Tardive dyskinesia (TD)
Whatever you may want, you do not want tardive dyskinesia.
Tardive dyskinesia (TD) is a disorder results in involuntary repetitive body movements, which may include grimacing, sticking out the tongue or smacking the lips.
And that’s just to start.
https://en.wikipedia.org/wiki/Tardive_dyskinesia?wprov=sfti1#