: Thank you.
tardive dyskenesia and dystonia, dementia, loss of muscle control, neuroleptic malignant syndrome
Haldol is often used in small doses (a milligram or a few) to control agitation in patients who have had disabling strokes, or in some demented patients (for example, Alzheimer's). It is not uncommon. Yes, it is also used for schizophrenia.
Haldol (and many related drugs, all of which are called neuroleptics) block the action of dopamine in the brain.