Haloperidol hydrochloride is primarily used in the treatment of psychiatric disorders, particularly schizophrenia and acute psychotic states. It helps manage symptoms such as hallucinations, delusions, and severe agitation by blocking dopamine receptors in the brain. Additionally, it is employed in controlling tics and vocal utterances in Tourette syndrome. In emergency settings, it is sometimes administered to manage severe behavioral disturbances or agitation in patients who may pose a risk to themselves or others. It is also used off-label for managing nausea and vomiting in certain cases, particularly when other treatments are ineffective. The medication is available in oral and injectable forms, allowing for flexible administration based on patient needs.