Prochlorperazine dimaleate is primarily used in the treatment of severe nausea and vomiting, often associated with surgery, chemotherapy, or migraines. It works by blocking dopamine receptors in the brain, which helps to control nausea and vomiting. Additionally, it is employed in managing symptoms of anxiety and certain psychiatric disorders, such as schizophrenia, due to its antipsychotic properties. In emergency settings, it can be administered to control acute agitation or severe anxiety. It is also sometimes used off-label for the treatment of vertigo and other balance disorders. The medication is typically administered orally, via injection, or as a suppository, depending on the patient's condition and needs.