Perphenazine is an anti-psychotic medication in a group of drugs called phenothiazines
(FEEN-oh-THYE-a-zeens). It works by changing the actions of chemicals in your brain.
Perphenazine is used to treat psychotic disorders such as schizophrenia. It is also used to
control severe nausea and vomiting.
Perphenazine may also be used for other purposes not listed in this medication guide.