Prochlorperazine is used to treat mental disorders like schizophrenia. It is also used to treat and prevent nausea, and vomiting.It may be used to treat anxiety (short-term) in certain cases where other anti-anxiety drugs have been ineffective. It is also used to treat nausea, vomiting, dizziness or spinning sensations (vertigo) due to Meniere's disease.It belongs to a class of medication call phenothiazines. It acts on the central nervous system by blocking certain receptors thus producing an anti-psychotic and anti-vomiting effect