I took olanzapine 5mg for a while, but my doctor kept increasing the dose as I was "non-compliant" up to 10mg, then more to 20mg as I kept getting hospitalized for compulsive suicide attempts because the medication completely axed my judgement.
I gained about 40 pounds on it, developed dyskinesia after about 6-8 months and ended up cold turkeying off of it, but 5 years later, the movement problems still stay... Unfortunately it also destroyed my executive function too; I can barely even string together coherent thoughts and perform programming work without being overly medicated on ADHD drugs.
I know there's valbenazine and other Parkinson's drugs (selegiline works decently enough on a daily dose, but MAOIs can become dangerous in certain circumstances), but they don't solve the root problem.
Now I can barely even control my hands, legs or face and it's mildly disfiguring, but it's not like I care anymore...